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pvfj5ugro:master
pvfj5ugro:XZG——伪代码2
pvfj5ugro:XZG_伪代码
pvfj5ugro:SearchbyNum
pvfj5ugro:xzg_SortbyScore流程图
pvfj5ugro:XZG_SortbyName流程图
pvfj5ugro:XZG_AverSumofEveryCourse流程图
pvfj5ugro:ZY-ReadfromFile
pvfj5ugro:ZY-WritetoFile
pvfj5ugro:XZL_StatisticAnalysis
pvfj5ugro:ZY-PrintScore
pvfj5ugro:XZG_AsScortbyNum流程图
pvfj5ugro:XZL_SearchbyName
pvfj5ugro:xzg_SortbyScore
pvfj5ugro:Cx330_AverSumofEveryStudent
pvfj5ugro:Cx330_ReadScore
pvfj5ugro:XZG_main函数详细实现流程图
pvfj5ugro:Cx330_小修小补
pvfj5ugro:XZL_打印学生成绩
pvfj5ugro:Cx330_统计各分数段的学生人数及所占的百分比
pvfj5ugro:XZG_从文件中读取学生的学号，姓名，成绩等信息写入结构体stu中
pvfj5ugro:XZG_交换法实现字符串按字典顺序排序
pvfj5ugro:ZY_计算每门课程的总分和平均分
pvfj5ugro:ZY_计算每个学生各门成绩的总分和平均分
pvfj5ugro:XZG_按选择法将将数组num的元素值从低到高排序
pvfj5ugro:ZY_显示菜单并获得输入选项
pvfj5ugro:ZY_输入n个同学的m门成绩
pvfj5ugro:XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中
pvfj5ugro:XZG_按选择法将数组sum的元素值排序
pvfj5ugro:Cx330_按学号查找学生成绩并显示查找结果
pvfj5ugro:XZL_交换两个字符串
pvfj5ugro:XZL_交换两个长整型数据
pvfj5ugro:XZL_交换两个单精度浮点型数据
pvfj5ugro:XZL_使数据按降序排序
pvfj5ugro:XZL_使数据按升序排序
pvfj5ugro:Cx330_基本框架
pvfj5ugro:Cx330_3
pvfj5ugro:Cx330
m8mvbo72w:master
m8mvbo72w:XZL_打印学生成绩
m8mvbo72w:Cx330_统计各分数段的学生人数及所占的百分比
m8mvbo72w:XZG_从文件中读取学生的学号，姓名，成绩等信息写入结构体stu中
m8mvbo72w:XZG_交换法实现字符串按字典顺序排序
m8mvbo72w:ZY_计算每门课程的总分和平均分
m8mvbo72w:ZY_计算每个学生各门成绩的总分和平均分
m8mvbo72w:XZG_按选择法将将数组num的元素值从低到高排序
m8mvbo72w:ZY_显示菜单并获得输入选项
m8mvbo72w:ZY_输入n个同学的m门成绩
m8mvbo72w:XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中
m8mvbo72w:XZG_按选择法将数组sum的元素值排序
m8mvbo72w:Cx330_按学号查找学生成绩并显示查找结果
m8mvbo72w:XZL_交换两个字符串
m8mvbo72w:XZL_交换两个长整型数据
m8mvbo72w:XZL_交换两个单精度浮点型数据
m8mvbo72w:XZL_使数据按降序排序
m8mvbo72w:XZL_使数据按升序排序
m8mvbo72w:Cx330_基本框架
m8mvbo72w:Cx330_3
m8mvbo72w:Cx330
..
compare: m8mvbo72w:XZG_交换法实现字符串按字典顺序排序
Branches Tags
m8mvbo72w:master
m8mvbo72w:XZL_打印学生成绩
m8mvbo72w:Cx330_统计各分数段的学生人数及所占的百分比
m8mvbo72w:XZG_从文件中读取学生的学号，姓名，成绩等信息写入结构体stu中
m8mvbo72w:XZG_交换法实现字符串按字典顺序排序
m8mvbo72w:ZY_计算每门课程的总分和平均分
m8mvbo72w:ZY_计算每个学生各门成绩的总分和平均分
m8mvbo72w:XZG_按选择法将将数组num的元素值从低到高排序
m8mvbo72w:ZY_显示菜单并获得输入选项
m8mvbo72w:ZY_输入n个同学的m门成绩
m8mvbo72w:XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中
m8mvbo72w:XZG_按选择法将数组sum的元素值排序
m8mvbo72w:Cx330_按学号查找学生成绩并显示查找结果
m8mvbo72w:XZL_交换两个字符串
m8mvbo72w:XZL_交换两个长整型数据
m8mvbo72w:XZL_交换两个单精度浮点型数据
m8mvbo72w:XZL_使数据按降序排序
m8mvbo72w:XZL_使数据按升序排序
m8mvbo72w:Cx330_基本框架
m8mvbo72w:Cx330_3
m8mvbo72w:Cx330
pvfj5ugro:master
pvfj5ugro:XZG——伪代码2
pvfj5ugro:XZG_伪代码
pvfj5ugro:SearchbyNum
pvfj5ugro:xzg_SortbyScore流程图
pvfj5ugro:XZG_SortbyName流程图
pvfj5ugro:XZG_AverSumofEveryCourse流程图
pvfj5ugro:ZY-ReadfromFile
pvfj5ugro:ZY-WritetoFile
pvfj5ugro:XZL_StatisticAnalysis
pvfj5ugro:ZY-PrintScore
pvfj5ugro:XZG_AsScortbyNum流程图
pvfj5ugro:XZL_SearchbyName
pvfj5ugro:xzg_SortbyScore
pvfj5ugro:Cx330_AverSumofEveryStudent
pvfj5ugro:Cx330_ReadScore
pvfj5ugro:XZG_main函数详细实现流程图
pvfj5ugro:Cx330_小修小补
pvfj5ugro:XZL_打印学生成绩
pvfj5ugro:Cx330_统计各分数段的学生人数及所占的百分比
pvfj5ugro:XZG_从文件中读取学生的学号，姓名，成绩等信息写入结构体stu中
pvfj5ugro:XZG_交换法实现字符串按字典顺序排序
pvfj5ugro:ZY_计算每门课程的总分和平均分
pvfj5ugro:ZY_计算每个学生各门成绩的总分和平均分
pvfj5ugro:XZG_按选择法将将数组num的元素值从低到高排序
pvfj5ugro:ZY_显示菜单并获得输入选项
pvfj5ugro:ZY_输入n个同学的m门成绩
pvfj5ugro:XZL_输出n个学生的学号、姓名及m门课程的成绩到文件中
pvfj5ugro:XZG_按选择法将数组sum的元素值排序
pvfj5ugro:Cx330_按学号查找学生成绩并显示查找结果
pvfj5ugro:XZL_交换两个字符串
pvfj5ugro:XZL_交换两个长整型数据
pvfj5ugro:XZL_交换两个单精度浮点型数据
pvfj5ugro:XZL_使数据按降序排序
pvfj5ugro:XZL_使数据按升序排序
pvfj5ugro:Cx330_基本框架
pvfj5ugro:Cx330_3
pvfj5ugro:Cx330

No commits in common. 'master' and 'XZG_交换法实现字符串按字典顺序排序' have entirely different histories.
master ... XZG_交换法实现字

17 changed files with 147 additions and 5147 deletions
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150
-WritetoFile.svg
Unescape View File

@ -1,150 +0,0 @@
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<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
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<text x="837" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">WritetoFile</tspan>
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<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,341 L 651,496 L 1023,496 L 1023,341 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,372 1023,372"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,341 682,496"/>
<text x="852" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="852" dy="62" unicode-bidi="embed">Integer i</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,589 L 651,744 L 1023,744 L 1023,589 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,620 1023,620"/>
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<text x="852" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="852" dy="62" unicode-bidi="embed">Integer j</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1085 1488,1085 1488,1377"/>
<polygon fill="#404040" stroke="none" points="1488,1395 1505,1364 1470,1364"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,1581 1488,1705 885,1705"/>
<polygon fill="#404040" stroke="none" points="868,1705 898,1722 898,1687"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="403,1085 155,1085 155,1705 788,1705"/>
<polygon fill="#404040" stroke="none" points="806,1705 775,1687 775,1722"/>
<g>
<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 837,837 L 372,1085 L 837,1333 L 1302,1085 Z"/>
<text x="837" y="1010" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">(fp = fopen(&quot;student.txt&quot;,</tspan>
<tspan x="837" dy="62" unicode-bidi="embed"> &quot;w&quot;)) == NULL</tspan>
</text>
</g>
<g>
<path fill="#D0FFD0" stroke="#70A070" stroke-width="4" stroke-dasharray="none" d="M 1178,1395 L 1085,1581 L 1798,1581 L 1891,1395 Z"/>
<text x="1488" y="1413" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1488" dy="62" unicode-bidi="embed">Output &quot;Failure to open</tspan>
<tspan x="1488" dy="62" unicode-bidi="embed"> score.txt!\n&quot;</tspan>
</text>
</g>
<g>
</g>
<ellipse cx="837" cy="1705" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
<text x="1395" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1395" dy="62" unicode-bidi="embed">True</tspan>
</text>
<text x="263" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="263" dy="62" unicode-bidi="embed">False</tspan>
</text>
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<text x="837" y="1847" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">Output fp, &quot;%d\t%d\n&quot;, n, m</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1085,2139 1488,2139 1488,2245"/>
<polygon fill="#404040" stroke="none" points="1488,2263 1505,2232 1470,2232"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,3348 1488,3441 899,3441 899,2218"/>
<polygon fill="#404040" stroke="none" points="899,2201 881,2231 916,2231"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,2449 1488,2555"/>
<polygon fill="#404040" stroke="none" points="1488,2573 1505,2542 1470,2542"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,2697 1488,3144"/>
<polygon fill="#404040" stroke="none" points="1488,3162 1505,3131 1470,3131"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,2263 L 1023,2449 L 1860,2449 L 1953,2263 Z"/>
<text x="1488" y="2281" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1488" dy="62" unicode-bidi="embed">Output fp, &quot;%10ld%10s&quot;, stu</tspan>
<tspan x="1488" dy="62" unicode-bidi="embed">[i].num, stu[i].name</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1736,2635 2108,2635 2108,2741"/>
<polygon fill="#404040" stroke="none" points="2108,2759 2125,2728 2090,2728"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2108,2945 2108,3038 1550,3038 1550,2714"/>
<polygon fill="#404040" stroke="none" points="1550,2697 1532,2727 1567,2727"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1767,2759 L 1674,2945 L 2449,2945 L 2542,2759 Z"/>
<text x="2108" y="2777" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2108" dy="62" unicode-bidi="embed">Output fp, &quot;%10.0f&quot;, stu[i].</tspan>
<tspan x="2108" dy="62" unicode-bidi="embed">score[j]</tspan>
</text>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1302,2573 L 1240,2635 L 1302,2697 L 1674,2697 L 1736,2635 L 1674,2573 Z"/>
<text x="1488" y="2591" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1488" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
</text>
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<text x="1829" y="2529" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1829" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="1379" y="2715" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1379" dy="62" unicode-bidi="embed">Done</tspan>
</text>
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<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1147,3162 L 1054,3348 L 1829,3348 L 1922,3162 Z"/>
<text x="1488" y="3180" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1488" dy="62" unicode-bidi="embed">Output fp, &quot;%10.0f%10.0f\</tspan>
<tspan x="1488" dy="62" unicode-bidi="embed">n&quot;, stu[i].sum, stu[i].aver</tspan>
</text>
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<text x="837" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
</text>
</g>
<text x="1178" y="2033" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1178" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="728" y="2219" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="728" dy="62" unicode-bidi="embed">Done</tspan>
</text>
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Side by Side

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239
AsSortbyNum.svg
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<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2728" height="5487">
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<tspan x="372" dy="62" unicode-bidi="embed">AsSortbyNum</tspan>
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<text x="372" y="5257" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="372" dy="62" unicode-bidi="embed">End</tspan>
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<text x="387" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="387" dy="62" unicode-bidi="embed">Integer i</tspan>
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<tspan x="387" dy="62" unicode-bidi="embed">Integer j</tspan>
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<tspan x="387" dy="62" unicode-bidi="embed">Integer k</tspan>
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<text x="992" y="1568" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
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<text x="1829" y="2157" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1829" dy="62" unicode-bidi="embed">if (stu[j].num &lt; stu[k].num)</tspan>
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<g>
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<text x="2418" y="2498" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2418" dy="62" unicode-bidi="embed">k = j</tspan>
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<tspan x="2325" dy="62" unicode-bidi="embed">True</tspan>
</text>
<text x="1317" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1317" dy="62" unicode-bidi="embed">False</tspan>
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<text x="992" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="992" dy="62" unicode-bidi="embed">j = i+1 to n-1</tspan>
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<text x="1333" y="1754" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1333" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="883" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="883" dy="62" unicode-bidi="embed">Done</tspan>
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<polygon fill="#404040" stroke="none" points="1023,4991 1053,5008 1053,4973"/>
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<polygon fill="#404040" stroke="none" points="961,4991 930,4973 930,5008"/>
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<text x="992" y="3025" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="992" dy="62" unicode-bidi="embed">k != i</tspan>
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<tspan x="1519" dy="62" unicode-bidi="embed">t = 0 to m-1</tspan>
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<text x="1860" y="3211" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1860" dy="62" unicode-bidi="embed">Next</tspan>
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<text x="1410" y="3397" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1410" dy="62" unicode-bidi="embed">Done</tspan>
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<tspan x="1519" dy="62" unicode-bidi="embed">aver)</tspan>
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<tspan x="1519" dy="62" unicode-bidi="embed">SwapChar(stu[k].name, stu</tspan>
<tspan x="1519" dy="62" unicode-bidi="embed">[i].name)</tspan>
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<tspan x="713" dy="62" unicode-bidi="embed">Next</tspan>
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<tspan x="263" dy="62" unicode-bidi="embed">Done</tspan>
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137
AverSumofEveryCourse.svg
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@ -1,137 +0,0 @@
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<text x="1519" y="1754" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1519" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="1069" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1069" dy="62" unicode-bidi="embed">Done</tspan>
</text>
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<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 930,2387 L 930,2511 L 1426,2511 L 1426,2387 Z"/>
<text x="1178" y="2405" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1178" dy="62" unicode-bidi="embed">aver[j] = sum[i]/i</tspan>
</text>
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<g>
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<text x="1178" y="2622" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1178" dy="62" unicode-bidi="embed">Output &quot;course %d: sum =</tspan>
<tspan x="1178" dy="62" unicode-bidi="embed"> %.0f,aver = %.0f\n&quot;, j + 1,</tspan>
<tspan x="1178" dy="62" unicode-bidi="embed"> sum[j], aver[j]</tspan>
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<g>
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<text x="496" y="1382" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="496" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
</text>
</g>
<text x="837" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="387" y="1506" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="387" dy="62" unicode-bidi="embed">Done</tspan>
</text>
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</g>
</g>
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AverSumofEveryStudent.svg
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<text x="612" y="165" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="612" dy="72" unicode-bidi="embed">AverSumofEveryStudent</tspan>
<tspan x="612" dy="72" unicode-bidi="embed">(Integer n, Integer m)</tspan>
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<text x="612" y="3081" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="612" dy="72" unicode-bidi="embed">End</tspan>
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<text x="630" y="525" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="630" dy="72" unicode-bidi="embed">Integer i</tspan>
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<tspan x="630" dy="72" unicode-bidi="embed">Integer j</tspan>
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<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1152,1296 L 1152,1440 L 1656,1440 L 1656,1296 Z"/>
<text x="1404" y="1317" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1404" dy="72" unicode-bidi="embed">stu[i].sum = 0</tspan>
</text>
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<g>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1692,1656 2052,1656 2052,1779"/>
<polygon fill="#404040" stroke="none" points="2052,1800 2072,1765 2031,1765"/>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="2052,2016 2052,2124 1476,2124 1476,1748"/>
<polygon fill="#404040" stroke="none" points="1476,1728 1455,1762 1496,1762"/>
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<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1620,1800 L 1620,2016 L 2484,2016 L 2484,1800 Z"/>
<text x="2052" y="1821" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2052" dy="72" unicode-bidi="embed">stu[i].sum = stu[i].sum+stu</tspan>
<tspan x="2052" dy="72" unicode-bidi="embed">[i].score[j]</tspan>
</text>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 1188,1584 L 1116,1656 L 1188,1728 L 1620,1728 L 1692,1656 L 1620,1584 Z"/>
<text x="1404" y="1605" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1404" dy="72" unicode-bidi="embed">j = 0 to m-1</tspan>
</text>
</g>
<text x="1800" y="1533" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1800" dy="72" unicode-bidi="embed">Next</tspan>
</text>
<text x="1278" y="1749" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1278" dy="72" unicode-bidi="embed">Done</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1008,2268 L 1008,2412 L 1800,2412 L 1800,2268 Z"/>
<text x="1404" y="2289" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1404" dy="72" unicode-bidi="embed">stu[i].aver = stu[i].sum/m</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 972,2520 L 828,2808 L 1836,2808 L 1980,2520 Z"/>
<text x="1404" y="2541" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1404" dy="72" unicode-bidi="embed">Output &quot;student %d: sum =</tspan>
<tspan x="1404" dy="72" unicode-bidi="embed"> %.0f,aver = %.0f\n&quot;, i + 1,</tspan>
<tspan x="1404" dy="72" unicode-bidi="embed"> stu[i].sum, stu[i].aver</tspan>
</text>
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</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 396,1080 L 324,1152 L 396,1224 L 828,1224 L 900,1152 L 828,1080 Z"/>
<text x="612" y="1101" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="612" dy="72" unicode-bidi="embed">i = 0 to n-1</tspan>
</text>
</g>
<text x="1008" y="1029" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1008" dy="72" unicode-bidi="embed">Next</tspan>
</text>
<text x="486" y="1245" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="486" dy="72" unicode-bidi="embed">Done</tspan>
</text>
</g>
</g>
</g>
</svg>
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2263" height="2604">
<rect x="0" y="0" width="2263" height="2604" fill="#FFFFFF"/>
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<text x="372" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="372" dy="62" unicode-bidi="embed">PrintScore</tspan>
</text>
</g>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 248,2356 A 62 62, 0, 0 0, 248 2480 L 496,2480 A 62 62, 0, 0 0, 496 2356 Z"/>
<text x="372" y="2374" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="372" dy="62" unicode-bidi="embed">End</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="372,496 372,571"/>
<polygon fill="#404040" stroke="none" points="372,589 389,558 354,558"/>
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<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 186,341 L 186,496 L 558,496 L 558,341 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="186,372 558,372"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="217,341 217,496"/>
<text x="387" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="387" dy="62" unicode-bidi="embed">Integer i</tspan>
</text>
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<tspan x="387" dy="62" unicode-bidi="embed">Integer j</tspan>
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<polygon fill="#404040" stroke="none" points="1023,1364 1040,1333 1005,1333"/>
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<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 682,1054 L 589,1240 L 1364,1240 L 1457,1054 Z"/>
<text x="1023" y="1072" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1023" dy="62" unicode-bidi="embed">Output &quot;%ld\t%s\t&quot;, stu[i].</tspan>
<tspan x="1023" dy="62" unicode-bidi="embed">num, stu[i].name</tspan>
</text>
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<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1426 1674,1426 1674,1532"/>
<polygon fill="#404040" stroke="none" points="1674,1550 1691,1519 1656,1519"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1674,1736 1674,1829 1085,1829 1085,1505"/>
<polygon fill="#404040" stroke="none" points="1085,1488 1067,1518 1102,1518"/>
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<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1302,1550 L 1209,1736 L 2046,1736 L 2139,1550 Z"/>
<text x="1674" y="1568" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1674" dy="62" unicode-bidi="embed">Output &quot;%.0f\t&quot;, stu[i].score</tspan>
<tspan x="1674" dy="62" unicode-bidi="embed">[j]</tspan>
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<text x="1023" y="1382" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1023" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
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<text x="1364" y="1320" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1364" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="914" y="1506" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="914" dy="62" unicode-bidi="embed">Done</tspan>
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<text x="1023" y="1971" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1023" dy="62" unicode-bidi="embed">Output &quot;%.0f\t%.0f\n&quot;, stu[i].</tspan>
<tspan x="1023" dy="62" unicode-bidi="embed">sum, stu[i].aver</tspan>
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<text x="372" y="886" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="372" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
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<text x="713" y="824" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="713" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="263" y="1010" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="263" dy="62" unicode-bidi="embed">Done</tspan>
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README.md
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# 学习成绩管理系统
2023年4月17日-5月1日
## 系统介绍
本成绩管理系统是为教师提供管理班级成绩的工具，该系统可以实现的对学生的成绩进行增、删、改、查、信息保存和信息导入等基本信息，以及对学生成绩排序和分段的扩展功能，有利于对学生成绩管理。
李雨佳 徐子贵 许子林 张宇
## 设计思想
利用结构体——定义STU结构体存储学生学号、姓名、各科成绩、总成绩和平均成绩，利用文件来存储，读取数据。
## 项目简介
## 功能描述
- 创建学生基本信息，便于之后查询和浏览
本成绩管理系统是为教师提供管理班级成绩的工具，该系统可以实现的对学生的成绩进行增、删、改、查、信息保存和信息导入等基本信息，以及对学生成绩排序和分段的扩展功能，有利于对学生成绩管理。项目采用C语言编程实现，在VS Code 集成开发环境（IDE）中使用GCC进行编译。系统采用模块化设计，程序结构清晰，采用菜单驱动的命令行界面，操作便捷，能够用CSV格式读取和保存数据，通用性强，能够用图表展示数据，直观清楚。
- 录入各科学习成绩
下载地址：https://bdgit.educoder.net/pvfj5ugro/text1.git
- 计算每个学生各门课程的总分和平均分
项目开发过程中采用 Kanban（看板）进行任务管理和分工协作，并使用 Git 对程序代码和文档进行版本管理。任务分工情况如下：
- 计算每门课程的总分和平均分
| 任务 | 设计 | 开发 | 测试 | 文档 |
| ------ | ----- | ----- | -- | ----- |
| C1-C3 菜单驱动的用户界面 | 许子林 | 许子林 | 李雨佳 张宇 | 徐子贵 |
| C4 添加学生信息 | 张宇 | 张宇 | 徐子贵 许子林 | 李雨佳 |
| C5-C6 求和求平均 | 徐子贵 | 徐子贵 | 李雨佳 许子林 | 张宇 |
| C7-C9 排序 | 李雨佳 | 李雨佳 | 张宇 徐子贵 | 许子林 |
| C10 学生信息查询 | 张宇 | 张宇 | 李雨佳 徐子贵 | 许子林 |
| C11 统计学生信息 | 徐子贵 | 徐子贵 | 许子林 张宇 | 李雨佳 |
| C12 打印学生信息 | 许子林 | 许子林 | 李雨佳 张宇 | 徐子贵 |
| C13 将学生信息读入文件 | 李雨佳 | 李雨佳 | 许子林 徐子贵 | 张宇 |
| C14 从文件中读取学生信息 | 李雨佳 | 李雨佳 | 张宇 徐子贵 | 许子林 |
- 按每个学生的总分由高到低排出名次表
每个成员的工作量（百分比）：
- 按每个学生的总分由低到高排出名次表
| 李雨佳 | 徐子贵 | 许子林 | 张宇 |
| ------ | ----- | ------ | --- |
|30 | 30 | 20 | 20 |
- 按学号由小到大排出成绩表
## 关于学生成绩管理系统
- 按姓名的字母顺序排出成绩表
设计一个学生成绩管理系统，要求采用行菜单界面进行交互，具备读取、保存、打印、查询、插入和排序等基本功能，能够以表格和图表形式展示数据，采用CSV格式保存数据。
- 按学号查询学生排名及其考试成绩
系统的功能性需求：
- 按姓名查询学生排名及考试成绩
- 数据的读取、保存、打印、查询、插入、排序和图表展示。
- 按优秀（90-100）、良好（80-89）、中等（70-79）、及格（60-69）、不及格（0-59）5个类别，对每门课程分别统计每个类别的人数以及所占的百分比
系统的非功能性需求：
- 输出每个学生的学号、姓名、各科考试成绩、以及每门课程的总分和平均分
- 菜单驱动的命令行交互界面
- 将每个学生的记录信息写入文件
## 需求分析
- 从文件中读出每个学生的记录信息并显示
分析系统的功能需求和界面需求，编制用户手册如下。
## 功能设计
### C1: 启动程序
命令行中执行命令./app,系统启动，显示提示信息，然后显示功能菜单，等待用户输入命令。
```
Management for Students'scores
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice:
```
### C2: 显示命令菜单
调用 Menu() 函数显示命令菜单，用户输入选项后，将结果返回主函数
```
Management for Students'scores
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice:
```
### C3: 退出程序
选择菜单命令 0 ，再输入 y 确认，则退出程序。
```
Please Input your choice: 0
Are you sure you want to exit?(Y/N): y
End of program!
```
### C4: 添加学生信息
选择菜单命令 1 ，假设n=4,m=3,提示输入学生的学号，姓名和成绩，然后利用循环逐个输入学生的学号和姓名以及各科成绩。
```
Please Input your choice: 1
Input student's ID, name and score:
2214111006 XuZilin 100 95 86
2214111009 XuZigui 77 89 99
2214111011 ZhangYu 85 91 98
2214111025 LiYujia 75 89 100
```
### C5: 计算学生各门课程总分和平均分
选择菜单命令 2 ，计算学生各门课程总分和平均分,然后利用循环逐个输出学生的顺序，总成绩和平均分，结果都取整数。
```
Please Input your choice: 2
student 1: sum = 281, aver = 93
student 2: sum = 265, aver = 88
student 3: sum = 274, aver = 91
student 4: sum = 264, aver = 88
```
### C6: 计算每门课程的总分和平均分
选择菜单命令 3 ，计算每门课程的总分和平均分，然后利用循环逐个输出每门课程的总分和平均分，结果都取整数。
```
Please Input your choice: 3
course 1: sum = 337, aver = 84
course 2: sum = 364, aver = 91
course 3: sum = 383, aver = 95
```
### C7: 学生总分排序
如果a < b,则按升序排列。选择菜单命令 4 ，按选择法将数组 sum 的元素值按升序进行排序，显示提示信息，最后打印出学生信息。
如果a > b,则按降序排序。选择菜单命令 5 ，按选择法将数组 sum 的元素值按降序进行排序，显示提示信息，最后打印出学生成绩。
```
Please Input your choice: 4
Sort in descending order by score:
2214111006 XuZilin 100 95 86 281 93
2214111011 ZhangYu 85 91 98 274 91
2214111009 XuZigui 77 89 99 265 88
2214111025 LiYujia 75 89 100 264 88
Please Input your choice: 5
Sort in ascending order by score:
2214111025 LiYujia 75 89 100 264 88
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111006 XuZilin 100 95 86 281 93
```
### C8: 学号顺序排序
选择菜单命令 6 ，按学号从小到大进行排序，显示提示信息，最后打印学生信息。
```
Please Input your choice: 6
Sort in ascending order by number:
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
### C9: 姓名顺序排序
选择菜单命令 7 ，按姓名的字典顺序进行排序，显示提示信息，最后打印学生信息。
```
Please Input your choice: 7
Sort in dictionary order by name:
2214111025 LiYujia 75 89 100 264 88
2214111009 XuZigui 77 89 99 265 88
2214111006 XuZilin 100 95 86 281 93
2214111011 ZhangYu 85 91 98 274 91
```
### C10: 学生信息查询
- 选择菜单命令 8 ，提示输入学生学号，若该学号存在，则输出学生信息；否则提示没有找到并结束。
```
Please Input your choice: 8
Input the number you want to search:2214111011
2214111011 ZhangYu 85 91 98 274 91
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 8
Input the number you want to search:2214111001
Not found!
```
- 选择菜单命令 9 ，提示输入学生姓名，若该姓名存在，则输出学生信息；否则提示没有找到并结束。
```
Please Input your choice: 9
Input the name you want to search:LiYujia
2214111025 LiYujia 75 89 100 264 88
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 9
Input the name you want to search:SunYizhe
Not found!
```
### C11: 统计各分数段学生人数及所占百分比
选择菜单命令 10，提示输入学生成绩，通过循环得出各分数段学生人数及所占百分比
```
Please Input your choice: 10
For course 1:
<60 0 0.00%
60-70 0 0.00%
70-80 2 50.00%
80-90 1 25.00%
90-100 0 0.00%
100 1 25.00%
For course 2:
<60 0 0.00%
60-70 0 0.00%
70-80 0 00.00%
80-90 2 50.00%
90-100 2 50.00%
100 0 0.00%
For course 3:
<60 0 0.00%
60-70 0 0.00%
70-80 0 0.00%
80-90 1 25.00%
90-100 2 50.00%
100 1 25.00%
```
### C12: 打印学生信息
选择菜单命令11，打印
```
Please Input your choice: 11
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
### C13: 将学生信息保存在文件中
选择菜单命令 12 ，将学生信息保存在文件 student.txt 中。如果文件不存在，则给出错误信息并退出程序，否则逐个读入
```
Please Input your choice: 12
Failure to open score.txt!
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 12
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
### C14：从文件中读取学生信息
选择菜单命令 13 ，从文件中读取学生的学号、姓名及成绩等信息写入到结构体数组 stu 中。如果文件为空，则给出错误信息并退出程序，反之，逐个读入
```
Please Input your choice: 13
Failure to open score.txt!
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 13
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
## 概要设计
系统主要分为用户界面和数据处理两大模块。
用户界面模块包括系统初始化（init），显示菜单（display_menu），选择菜单命令（make_choice）、确认（confirm）、退出（quit）等子模块。
数据处理模块包括读取数据（read_data）、保存数据（save_data）、打印数据（print_data）、查询数据（query_data）、添加数据（add_data）、更新数据（update_data）、删除数据（delete_data）、数据排序（sort_data）和生成图表（make_chart）等子模块。其中查询、添加、更
新和删除数据还会用到根据编号查询数据的方法（find）。
上述各模块通过主程序（main）进行调用，系统模块图如下。
![系统模块图](main.drawio.svg)
各模块的主要功能如下：
#### main
系统主函数模块，显示菜单，根据用户选择的菜单命令，执行相关操作。
#### init
系统初始化
#### menu
显示菜单命令
## 详细设计
针对概要设计
#### main
Step 1:初始化
Step 2:根据用户选择的命令执行相应的操作
Step 2.1:显示菜单
Step 2.2:选择菜单命令 c
Step 2.3:if c == 1 then ReadScore
Step 2.4:if c == 2 then AverSumofEveryStudent
Step 2.5:if c == 3 then AverSumofEveryCourse
Step 2.6:if c == 4 then SortbyScore(Descending)
Step 2.7:if c == 5 then SortbyScore(Ascending)
Step 2.8:if c == 6 then AsSortbyNum
Step 2.9:if c == 7 then SortbyName
Step 2.10:if c == 8 then SearchbyNum
Step 2.11:if c == 9 then SearchbyName
Step 2.12:if c == 10 then StatisticAnalysis
Step 2.13:if c == 11 then PrintScore
Step 2.14:if c == 12 then WritetoFile
Step 2.15:if c == 13 then ReadfromFile
Step 2.16:if c == 0 then exit
![系统模块图](main函数详细实现.drawio.svg)
#### ReadScore
Step 1:显示提示信息，要求输入学生的学号，姓名和成绩
Step 2：利用循环，输入学生的学号，成绩和各科成绩
![学生信息输入](ReadScore.svg)
#### AverSumofEveryStudent
Step 1:利用for循环给 sum 赋初值为 0
Step 2:利用第二重循环重新计算每个学生的总分
Step 3:计算每个学生的平均分
Step 4:将结果按照顺序，总分和平均分的顺序进行输出
![计算每个学生各门课程的总分和平均分](AverSumofEveryStudent.svg)
#### AverSumofEveryCourse
Step 1:利用for循环给 sum 赋初值为 0
Step 2:利用第二重循环重新计算每门课程的总分
Step 3:计算每门课程的平均分
Step 4:将结果按照顺序，总分和平均分的顺序进行输出
![计算每门课程的总分和平均分](AverSumofEveryCourse.svg)
#### SortbyScore
Step 1:利用循环将i赋值给k
Step 2:用循环从i+1到n-1比较,将较小的赋给k
Step 3:如果k与i不相等，每一课的成绩交换
Step 4:总分，平均分，学号，姓名依次交换
![按选择法将数组 sum 的元素值排序](SortbyScore.svg)
#### AsSortbyNum
Step 1:利用循环将i赋值给k
Step 2:用循环从i+1到n-1比较,将较小的学号赋给k
Step 3:如果k与i不相等，每一课的成绩交换
Step 4:总分，平均分，学号，姓名依次交换
![按选择法将数组 num 的元素从低到高排序](AsSortbyNum.svg)
#### SortbyName
Step 1:利用for循环将相邻的两个姓名作比较
Step 2:如果前一个字符串大于后一个，利用for循环交换m门课程的成绩
Step 3:依次交换
![交换法实现字符串按字典顺序排序](SortbyName.svg)
#### SearchbyNum
Step 1:利用for循环给 i 赋值为 0
Step 2:利用 if 条件判断学号是否一致
Step 3:利用二次循环找出所有符合条件的学生
Step 4:利用if条件语句能否找到该学生
![按学号查找学生成绩并显示查找结果](SearchbyNum.svg)
#### SearchbyName
Step 1:利用for循环给 i 赋值为 0
Step 2:利用 if 条件和循环判断是否有此学生并显示结果
![按姓名查找学生成绩并显示查找结果](SearchbyName.svg)
#### StatisticAnalysis
Step 1:将数组 t 的全部元素初始化为0
Step 2:利用循环和if条件统计各分数段学生人数
Step 3:利用循环和if条件统计各分数段学生所占比结果
![统计各分数段的学生人数及所占的百分比](StatisticAnalysis.svg)
#### PrintScore
Step 1:利用for循环输出学生的学号和姓名
Step 2:利用二次循环输出每位学生的成绩
Step 3:输出学生的总分数和平均分
![打印学生成绩](PrintScore.svg)
#### WritetoFile
Step 1:读取文件输出学生人数和课程门数
Step 2:利用循环for依次输出学生学号和姓名
Step 3:利用二次循环输出学生成绩
Step 4:输出总成绩和平均分
![输出n个学生的学号，姓名以及m门课程的成绩](-WritetoFile.svg)
#### ReadfromFile
Step 1:从文件中读取学生人数和课门数
Step 2:利用循环for输入学生学号和姓名
Step 3:利用二次循环输入学生成绩
Step 4:输入学生总成绩和平均分
![从文件中读取学生的学号，姓名及成绩等信息写入结构体](ReadfromFile.svg)
#### exit
## 代码实现
### 基本框架
// 头文件的使用
@ -572,7 +98,7 @@ int main(void)
int n = 0,m = 0;
STU stu[STU_NUM];
printf("Input student number(n<%d):",STU_NUM);
scanf("%d",&n);
scnaf("%d",&n);
printf("Input course number(m<=%d):",COURSE_NUM);
scanf("%d",&m);
while(1)
@ -586,7 +112,7 @@ int main(void)
break;
case 3:AverSumofEveryStudent(stu,n,m);
break;
case 4:SortbyScore(stu,n,m,Descending);
case 4:SortbyScore(stu,n,m,Ascending);
printf("\nSort in descending order by score:\n");
PrintScore(stu,n,m);
break;
@ -614,8 +140,7 @@ int main(void)
break;
case 13:ReadfromFile(stu,&n,&m);
break;
case 0: printf("Are you sure you want to exit?(Y/N):");
printf("End of program!");
case 0:printf("End of program!);
exit(0);
default:printf("Input error!");
}
@ -628,305 +153,236 @@ int main(void)
```
int Menu(void)
{
set itemSelected
printf "Management for Students' scores\n"
printf "1 Input record\n"
printf "2 Calculate total and average score of every course\n"
printf "3 Calculate total and average score of every student\n"
printf "4 Sort in descending order by score\n"
printf "5 Sort in ascending order by score\n"
printf "6 Sort in ascending order by number\n"
printf "7 Sort in dictionary order by name\n"
printf "8 Search by number\n"
printf "9 Search by name\n"
printf "10 Statistic analysis\n"
printf "11 List record\n"
printf "12 Write to a file\n"
printf "13 Read from a file\n"
printf "0 Exit\n"
printf "Please Input your choice:"
input itemSelected //读入用户输入
return itemSelected
}
```
// 函数功能：输入 n 个学生的 m 门课成绩
```
function ReadScore(STU stu[],int n,int m) do
int i,j;
printf "Input student's ID ,name and score:\n"
for from i=0 to n-1 do //输入n个同学
input stu[i].num,stu[i].name
for form j=0 to m-1 do //输入m门成绩
input stu[i].score[j]
end
end
end
void ReadScore(STU stu[],int n,int m)
{
}
```
//函数功能：计算每个学生各门课程的总分和平均分
```
function AverSumofEveryStudent(STU stu[],int n,int m) do
int i,j;
for form i=0 to n-1 do
stu[i].sum = 0; //初始化每个学生总分为0
for from j=0 to m-1 do
stu[i].sum = stu[i].sum + stu[i].score[j]; //累加分数
end
stu[i].aver = m>0 ? stu[i].sum /m : -1;
printf "student %d: sum = %.0f,aver = %.0f\n"
end
end
void AverSumofEveryStudent(STU stu[],int n,int m)
{
}
```
//函数功能：计算每门课程的总分和平均分
```
function AverSumofEveryCourse(STU stu[],int n,int m) do
int i,j;
float sum[COURSE_NUM],aver[COURSE_NUM];
for from j=0 to m-1 do
sum[j] = 0;
for from i=0 to n-1 do
sum[j]+= stu[i].score[j]; //计算n个同学每门课程的总分
end
aver[j] = sum[j]/i;
printf "course %d: sum = %.0f,aver = %.0f\n"
end
end
void AverSumofEveryCourse(STU stu[],int n,int m)
{
}
```
//函数功能：按选择法将数组 sum 的元素值排序
```
function SortbyScore(STU stu[],int n,int m,int(*compare)(float a,float b)) do
int i, j, k, t;
for from i=0 to n-2 do
k = i;
for from i+1 to n-1 do
if (*compare)(stu[j].sum, stu[k].sum) set k = j;
end
if k != i
for from t=0 to m-1 do //交换m门课程的成绩
SwapFloat(&stu[k].score[t], &stu[i].score[t]);
end
SwapFloat(&stu[k].sum, &stu[i].sum); //交换总分
SwapFloat(&stu[k].aver, &stu[i].aver); //交换平均分
SwapLong(&stu[k].num, &stu[i].num); //交换学号
SwapChar(stu[k].name, stu[i].name); //交换姓名
end
end
end
voidSortbyScore(STU stu[],int n,int m,int(*compare)(float a,float b))
{
}
```
//使数据按升序排序
```
function Ascending(float a,float b) do
int Ascending(float a,float b)
{
return a < b; //这样比较决定了按升序排序，如果a<b，则交换
end
}
```
//使数据按降序排序
```
function Descending(float a,float b) do
int Descending(float a,float b)
{
return a > b; // 这样比较决定了按降序排序，如果 a>b，则交换
end
}
```
//交换两个单精度浮点型数据
```
function SwapFloat(float *x,float *y) do
void SwapFloat(float *x,float *y)
{
float temp;
temp = *x;
*x = *y;
*y = temp;
end
}
```
//交换两个长整型数据
```
function SwapLong(long *x,long *y) do
void SwapLong(long *x,long *y)
{
long temp;
temp = *x;
*x = *y;
*y = temp;
end
}
```
//交换两个字符串
```
function SwapChar(char x[],char y[]) do
void SwapChar(char x[],chary[])
{
char temp[MAX_LEN];
strcpy(temp, x);
strcpy(x, y);
strcpy(y, temp);
end
}
```
//函数功能：按选择法将数组 num 的元素从低到高排序
//函数功能：按选择法将数组 sum 的元素从低到高排序
```
function AsSortbyNum(STU stu[],int n,int m) do
int i, j, k, t;
for from i=0 to n-2 do
int i, j, k, t;
set k = i;
for from j=i+1 to n-1 do
if stu[j].num < stu[k].num set k = j;
end
if k != i do
for from t=0 to m-1 do //交换m门课程的成绩
void AsSortbyNum(STU stu[],int n,int m)
{
int i, j, k, t;
for (i=0; i<n-1; i++)
{
k = i;
for (j=i+1; j<n; j++)
{
if ((*compare)(stu[j].sum, stu[k].sum)) k = j;
}
if (k != i)
{
for (t=0; t<m; t++) //交换m门课程的成绩
{
SwapFloat(&stu[k].score[t], &stu[i].score[t]);
end
}
SwapFloat(&stu[k].sum, &stu[i].sum); //交换总分
SwapFloat(&stu[k].aver, &stu[i].aver); //交换平均分
SwapLong(&stu[k].num, &stu[i].num); //交换学号
SwapChar(stu[k].name, stu[i].name); //交换姓名
end
end
end
}
}
}
```
//函数功能：交换法实现字符串按字典顺序排序
```
function SortbyName(STU stu[],int n,int m) do
void SortbyName(STU stu[],int n,int m)
{
int i, j, t;
for from i=0 to n-2 do
for from j = i+1 to n-1 do
if strcmp(stu[j].name, stu[i].name) < 0 do
for from t=0 to m-1 do //交换m门课程的成绩
for (i=0; i<n-1; i++)
{
for (j = i+1; j<n; j++)
{
if (strcmp(stu[j].name, stu[i].name) < 0)
{
for (t=0; t<m; t++) //交换m门课程的成绩
{
SwapFloat(&stu[i].score[t], &stu[j].score[t]);
end
}
SwapFloat(&stu[i].sum, &stu[j].sum); //交换总分
SwapFloat(&stu[i].aver, &stu[j].aver); //交换平均分
SwapLong(&stu[i].num, &stu[j].num); //交换学号
SwapChar(stu[i].name, stu[j].name); //交换姓名
end
end
end
end
}
}
}
}
```
//函数功能：按学号查找学生成绩并显示查找结果
```
function SearchbyNum(STU stu[],int n,int m) do
void SearchbyNum(STU stu[],int n,int m)
{
long number;
int i,j;
printf"Input the number you want to search:"
input number
forfrom i=0 to n-1 do
if stu[i].num==number do
printf"\n"
for from j=0 to m-1 do
printf "%d\t"
printf "\n"
printf("Input the number you want to search:");
scanf("%ld",&number);
for(i=0;i<n;i++)
if(stu[i].num==number)
{
printf("\n");
for(j=0;j<m;j++)
printf("%d\t",stu[i].score[j]);
printf("\n");
break;
end
if i==n
printf "\nNot found!\n"
end
}
if(i==n)
printf("\nNot found!\n");
}
```
//函数功能：按姓名查找学生成绩并显示查找结果
//函数功能：按姓名的字典顺序排出成绩表
```
function SearchbyName(STU stu[],int n,int m) do
void SearchbyName(STU stu[],int n,int m)
{
char x[MAX_LEN];
int i,j;
printf "Input the name you want to search:"
input x
for from i=0 to n-1 do
if strcmp(stu[i].name,x)==0 do
printf "%ld\t%s\t",stu[i].num,stu[i].name"
for from j=0 to m-1 do
printf "%.0f\t"
end
printf ".0f\t%.0f\n"
printf("Input the name you want to search:");
scanf("%s", x);
for(i=0;i<n;i++)
{
if(strcmp(stu[i].name,x)==0)
{
printf("%ld\t%s\t",stu[i].num,stu[i].name);
for(j=0;j<m;j++)
{
printf("%.0f\t",stu[i].score[j]);
}
printf(".0f\t%.0f\n",stu[i].sum,stu[i].aver);
return;
end
end
printf "\nNot found!\n"
end
}
}
printf("\nNot found!\n);
}
```
//函数功能：统计各分数段的学生人数及所占的百分比
```
funtion StatisticAnalysis(STU stu[],int n,int m) do
int i,j,t[6];
for from j=0 do m-1 do
printf "For course %d:\n"
memset(t,0,sizeof(t)); //将数组 t 的全部元素初始化为0
for from i=0 to n-1 do
if stu[i].score[j]>=0&&stu[i].score[j]<60 set t[0]++
else if stu[i].score[j]<70 set t[1]++;
else if stu[i].score[j]<80 set t[2]++;
else if stu[i].score[j]<90 set t[3]++;
else if stu[i].score[j]<100 set t[4]++;
else if stu[i].score[j]==100 set t[5]++;
end
for from i=0 to 4 do
if i==0 printf "<60\t%d\t%.2f%%\n"
else if i==5 printf "%d\t%d\t%.2f%%\n"
else printf "%d-%d\t%d\t%.2f%%\n"
end
end
end
void StatisticAnalysis(STU stu[],int n,int m)
{
}
```
//函数功能：打印学生成绩
```
function PrintScore(STU stu[],int n,int m) do
int i,j;
for from i=0 to n-1 do
printf "%ld\t%s\t"
for from j=0 to m-1 do
printf "%.0f\t"
end
printf "%.0f\t%.0f\n"
end
end
void PrintScore(STU stu[],int n,int m)
{
}
```
//输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中
```
function WritetoFile(STU stu[],int n,int m) do
void WritetoFile(STU stu[],int n,int m)
{
FILE *fp;
int i, j;
if fp = fopen("student.txt","w") == NULL do
printf "Failure to open score.txt!\n"
if((fp = fopen("student.txt","w")) == NULL)
{
printf("Failure to open score.txt!\n");
exit(0);
end
}
fprintf(fp, "%d\t%d\n", n, m); //将学生人数和课程门数写入文件
for from i=0 to n-1 do
for (i=0; i<n; i++)
{
fprintf(fp, "%10ld%10s", stu[i].num, stu[i].name);
for from j=0 to m-1 do
for (j=0; j<m; j++)
{
fprintf(fp, "%10.0f", stu[i].score[j]);
end
}
fprintf(fp, "%10.0f%10.0f\n", stu[i].sum, stu[i].aver);
end
}
fclose(fp);
end
}
```
//从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中
```
function ReadfromFile(STU stu[],int *n,int *m) do
FILE *fp;
int i, j;
if fp = fopen("student.txt","r") == NULL do
printf "Failure to open score.txt!\n"
exit(0);
end
fscanf(fp, "%d\t%d", n, m); //从文件中读出学生人数，课程门数
for from i=0 to *n-1 do //学生人数保存在n指向的储存单元
fscanf(fp, "%10ld", &stu[i].num);
fscanf(fp, "%10s", stu[i].name);
for form j=0 to *m-1 do //课程门数保存在m指向的储存单元
fscanf(fp, "%10f", &stu[i].score[j]); //不能用%10.0f
end
fscanf(fp, "%10f%10f", &stu[i].sum, &stu[i].aver); //不能用%10.0f
end
fclose(fp);
end
void ReadfromFile(STU stu[],int *n,int *m)
{
}
```

116
ReadScore.svg
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@ -1,116 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
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<rect x="0" y="0" width="2412" height="3204" fill="#FFFFFF"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,360 684,447"/>
<polygon fill="#404040" stroke="none" points="684,468 704,433 663,433"/>
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<polygon fill="#404040" stroke="none" points="684,2916 704,2881 663,2881"/>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="5" stroke-dasharray="none" d="M 360,144 A 108 108, 0, 0 0, 360 360 L 1008,360 A 108 108, 0, 0 0, 1008 144 Z"/>
<text x="684" y="165" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="684" dy="72" unicode-bidi="embed">ReadScore</tspan>
<tspan x="684" dy="72" unicode-bidi="embed">(Integer n, Integer m)</tspan>
</text>
</g>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="5" stroke-dasharray="none" d="M 540,2916 A 72 72, 0, 0 0, 540 3060 L 828,3060 A 72 72, 0, 0 0, 828 2916 Z"/>
<text x="684" y="2937" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="684" dy="72" unicode-bidi="embed">End</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="684,648 684,735"/>
<polygon fill="#404040" stroke="none" points="684,756 704,721 663,721"/>
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<polygon fill="#404040" stroke="none" points="684,1404 704,1369 663,1369"/>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" d="M 468,468 L 468,648 L 900,648 L 900,468 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="468,504 900,504"/>
<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="504,468 504,648"/>
<text x="702" y="525" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="702" dy="72" unicode-bidi="embed">Integer i</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" d="M 468,756 L 468,936 L 900,936 L 900,756 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="468,792 900,792"/>
<polyline fill="none" stroke="#A0A070" stroke-width="5" stroke-dasharray="none" points="504,756 504,936"/>
<text x="702" y="813" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="702" dy="72" unicode-bidi="embed">Integer j</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 252,1044 L 144,1260 L 1116,1260 L 1224,1044 Z"/>
<text x="684" y="1065" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="684" dy="72" unicode-bidi="embed">Output &#8220;Input student's ID ,</tspan>
<tspan x="684" dy="72" unicode-bidi="embed">name and score:&quot;</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="972,1476 1260,1476 1260,1599"/>
<polygon fill="#404040" stroke="none" points="1260,1620 1280,1585 1239,1585"/>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1260,2304 1260,2772 756,2772 756,1568"/>
<polygon fill="#404040" stroke="none" points="756,1548 735,1582 776,1582"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1260,1764 1260,1851"/>
<polygon fill="#404040" stroke="none" points="1260,1872 1280,1837 1239,1837"/>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1260,2016 1260,2139"/>
<polygon fill="#404040" stroke="none" points="1260,2160 1280,2125 1239,2125"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 972,1620 L 900,1764 L 1548,1764 L 1620,1620 Z"/>
<text x="1260" y="1641" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1260" dy="72" unicode-bidi="embed">Input stu[i].num</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 972,1872 L 900,2016 L 1548,2016 L 1620,1872 Z"/>
<text x="1260" y="1893" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1260" dy="72" unicode-bidi="embed">Input stu[i].name</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1548,2232 1872,2232 1872,2355"/>
<polygon fill="#404040" stroke="none" points="1872,2376 1892,2341 1851,2341"/>
<polyline fill="none" stroke="#404040" stroke-width="9" stroke-dasharray="none" points="1872,2520 1872,2628 1332,2628 1332,2324"/>
<polygon fill="#404040" stroke="none" points="1332,2304 1311,2338 1352,2338"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="5" stroke-dasharray="none" d="M 1548,2376 L 1476,2520 L 2196,2520 L 2268,2376 Z"/>
<text x="1872" y="2397" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1872" dy="72" unicode-bidi="embed">Input stu[i].score[j]</tspan>
</text>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 1044,2160 L 972,2232 L 1044,2304 L 1476,2304 L 1548,2232 L 1476,2160 Z"/>
<text x="1260" y="2181" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1260" dy="72" unicode-bidi="embed">j = 0 to m-1</tspan>
</text>
</g>
<text x="1656" y="2109" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1656" dy="72" unicode-bidi="embed">Next</tspan>
</text>
<text x="1134" y="2325" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1134" dy="72" unicode-bidi="embed">Done</tspan>
</text>
</g>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="5" stroke-dasharray="none" d="M 468,1404 L 396,1476 L 468,1548 L 900,1548 L 972,1476 L 900,1404 Z"/>
<text x="684" y="1425" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="684" dy="72" unicode-bidi="embed">i = 0 to n-1</tspan>
</text>
</g>
<text x="1080" y="1353" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1080" dy="72" unicode-bidi="embed">Next</tspan>
</text>
<text x="558" y="1569" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="558" dy="72" unicode-bidi="embed">Done</tspan>
</text>
</g>
</g>
</g>
</svg>
Side by Side

Before

Width:  |  Height:  |  Size: 7.5 KiB

157
ReadfromFile.svg
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@ -1,157 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2821" height="3968">
<rect x="0" y="0" width="2821" height="3968" fill="#FFFFFF"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,248 837,323"/>
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<polygon fill="#404040" stroke="none" points="837,3720 854,3689 819,3689"/>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 651,124 A 62 62, 0, 0 0, 651 248 L 1023,248 A 62 62, 0, 0 0, 1023 124 Z"/>
<text x="837" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">ReadfromFile</tspan>
</text>
</g>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 713,3720 A 62 62, 0, 0 0, 713 3844 L 961,3844 A 62 62, 0, 0 0, 961 3720 Z"/>
<text x="837" y="3738" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">End</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,496 837,571"/>
<polygon fill="#404040" stroke="none" points="837,589 854,558 819,558"/>
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<polygon fill="#404040" stroke="none" points="837,2077 854,2046 819,2046"/>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,341 L 651,496 L 1023,496 L 1023,341 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,372 1023,372"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,341 682,496"/>
<text x="852" y="390" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="852" dy="62" unicode-bidi="embed">Integer i</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 651,589 L 651,744 L 1023,744 L 1023,589 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="651,620 1023,620"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="682,589 682,744"/>
<text x="852" y="638" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="852" dy="62" unicode-bidi="embed">Integer j</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1271,1085 1488,1085 1488,1377"/>
<polygon fill="#404040" stroke="none" points="1488,1395 1505,1364 1470,1364"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1488,1581 1488,1705 885,1705"/>
<polygon fill="#404040" stroke="none" points="868,1705 898,1722 898,1687"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="403,1085 155,1085 155,1705 788,1705"/>
<polygon fill="#404040" stroke="none" points="806,1705 775,1687 775,1722"/>
<g>
<path fill="#FFD0D0" stroke="#A07070" stroke-width="4" stroke-dasharray="none" d="M 837,837 L 372,1085 L 837,1333 L 1302,1085 Z"/>
<text x="837" y="1010" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">(fp = fopen(&quot;student.txt&quot;,</tspan>
<tspan x="837" dy="62" unicode-bidi="embed"> &quot;r&quot;)) == NULL</tspan>
</text>
</g>
<g>
<path fill="#D0FFD0" stroke="#70A070" stroke-width="4" stroke-dasharray="none" d="M 1178,1395 L 1085,1581 L 1798,1581 L 1891,1395 Z"/>
<text x="1488" y="1413" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1488" dy="62" unicode-bidi="embed">Output &quot;Failure to open</tspan>
<tspan x="1488" dy="62" unicode-bidi="embed"> score.txt!\n&quot;</tspan>
</text>
</g>
<g>
</g>
<ellipse cx="837" cy="1705" rx="31" ry="31" fill="#FFD0D0" stroke="#A07070" stroke-width="4"/>
<text x="1395" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1395" dy="62" unicode-bidi="embed">True</tspan>
</text>
<text x="263" y="979" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="263" dy="62" unicode-bidi="embed">False</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 496,1829 L 434,1953 L 1178,1953 L 1240,1829 Z"/>
<text x="837" y="1847" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">Input fp, &quot;%d\t%d&quot;, n, m</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1085,2139 1519,2139 1519,2245"/>
<polygon fill="#404040" stroke="none" points="1519,2263 1536,2232 1501,2232"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,3503 1519,3596 899,3596 899,2218"/>
<polygon fill="#404040" stroke="none" points="899,2201 881,2231 916,2231"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,2387 1519,2462"/>
<polygon fill="#404040" stroke="none" points="1519,2480 1536,2449 1501,2449"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,2604 1519,2710"/>
<polygon fill="#404040" stroke="none" points="1519,2728 1536,2697 1501,2697"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1519,2852 1519,3299"/>
<polygon fill="#404040" stroke="none" points="1519,3317 1536,3286 1501,3286"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,2263 L 1054,2387 L 1922,2387 L 1984,2263 Z"/>
<text x="1519" y="2281" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1519" dy="62" unicode-bidi="embed">Input fp, &quot;%10ld&quot;, &amp;stu[i].num</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1147,2480 L 1085,2604 L 1891,2604 L 1953,2480 Z"/>
<text x="1519" y="2498" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1519" dy="62" unicode-bidi="embed">Input fp, &quot;%10s&quot;, stu[i].name</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1767,2790 2201,2790 2201,2896"/>
<polygon fill="#404040" stroke="none" points="2201,2914 2218,2883 2183,2883"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2201,3100 2201,3193 1581,3193 1581,2869"/>
<polygon fill="#404040" stroke="none" points="1581,2852 1563,2882 1598,2882"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1798,2914 L 1705,3100 L 2604,3100 L 2697,2914 Z"/>
<text x="2201" y="2932" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2201" dy="62" unicode-bidi="embed">Input fp, &quot;%10f&quot;, &amp;stu[i].score</tspan>
<tspan x="2201" dy="62" unicode-bidi="embed">[j]</tspan>
</text>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1333,2728 L 1271,2790 L 1333,2852 L 1705,2852 L 1767,2790 L 1705,2728 Z"/>
<text x="1519" y="2746" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1519" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
</text>
</g>
<text x="1860" y="2684" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1860" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="1410" y="2870" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1410" dy="62" unicode-bidi="embed">Done</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1116,3317 L 1023,3503 L 1922,3503 L 2015,3317 Z"/>
<text x="1519" y="3335" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1519" dy="62" unicode-bidi="embed">Input fp, &quot;%10f%10f&quot;, &amp;stu[i].</tspan>
<tspan x="1519" dy="62" unicode-bidi="embed">sum, &amp;stu[i].aver</tspan>
</text>
</g>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 651,2077 L 589,2139 L 651,2201 L 1023,2201 L 1085,2139 L 1023,2077 Z"/>
<text x="837" y="2095" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="837" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
</text>
</g>
<text x="1178" y="2033" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1178" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="728" y="2219" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="728" dy="62" unicode-bidi="embed">Done</tspan>
</text>
</g>
</g>
</g>
</svg>
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Before

Width:  |  Height:  |  Size: 10 KiB

165
SearchbyName.svg
Unescape View File

@ -1,165 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2945" height="4092">
<rect x="0" y="0" width="2945" height="4092" fill="#FFFFFF"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,310 589,385"/>
<polygon fill="#404040" stroke="none" points="589,403 606,372 571,372"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,3751 589,3826"/>
<polygon fill="#404040" stroke="none" points="589,3844 606,3813 571,3813"/>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 310,124 A 93 93, 0, 0 0, 310 310 L 868,310 A 93 93, 0, 0 0, 868 124 Z"/>
<text x="589" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="589" dy="62" unicode-bidi="embed">SearchbyName</tspan>
<tspan x="589" dy="62" unicode-bidi="embed">(Integer n, Integer m)</tspan>
</text>
</g>
<g>
<path fill="#E0E0E0" stroke="#505050" stroke-width="4" stroke-dasharray="none" d="M 403,3844 A 62 62, 0, 0 0, 403 3968 L 775,3968 A 62 62, 0, 0 0, 775 3844 Z"/>
<text x="589" y="3862" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="589" dy="62" unicode-bidi="embed">Return Integer </tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,558 589,633"/>
<polygon fill="#404040" stroke="none" points="589,651 606,620 571,620"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,806 589,881"/>
<polygon fill="#404040" stroke="none" points="589,899 606,868 571,868"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1054 589,1129"/>
<polygon fill="#404040" stroke="none" points="589,1147 606,1116 571,1116"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1333 589,1408"/>
<polygon fill="#404040" stroke="none" points="589,1426 606,1395 571,1395"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1550 589,1656"/>
<polygon fill="#404040" stroke="none" points="589,1674 606,1643 571,1643"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="589,1798 589,3609"/>
<polygon fill="#404040" stroke="none" points="589,3627 606,3596 571,3596"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 310,403 L 310,558 L 868,558 L 868,403 Z"/>
<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="310,434 868,434"/>
<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="341,403 341,558"/>
<text x="604" y="452" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="604" dy="62" unicode-bidi="embed">String x[MAX_LEN]</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 403,651 L 403,806 L 775,806 L 775,651 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,682 775,682"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="434,651 434,806"/>
<text x="604" y="700" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="604" dy="62" unicode-bidi="embed">Integer i</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 403,899 L 403,1054 L 775,1054 L 775,899 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,930 775,930"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="434,899 434,1054"/>
<text x="604" y="948" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="604" dy="62" unicode-bidi="embed">Integer j</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 217,1147 L 124,1333 L 961,1333 L 1054,1147 Z"/>
<text x="589" y="1165" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="589" dy="62" unicode-bidi="embed">Output Input the name you</tspan>
<tspan x="589" dy="62" unicode-bidi="embed"> want to search:</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 434,1426 L 372,1550 L 744,1550 L 806,1426 Z"/>
<text x="589" y="1444" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="589" dy="62" unicode-bidi="embed">Input %s</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="837,1736 1457,1736 1457,1842"/>
<polygon fill="#404040" stroke="none" points="1457,1860 1474,1829 1439,1829"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1457,3410 1457,3503 651,3503 651,1815"/>
<polygon fill="#404040" stroke="none" points="651,1798 633,1828 668,1828"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1860,2077 2077,2077 2077,2338"/>
<polygon fill="#404040" stroke="none" points="2077,2356 2094,2325 2059,2325"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2077,3255 2077,3379 1505,3379"/>
<polygon fill="#404040" stroke="none" points="1488,3379 1518,3396 1518,3361"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="1054,2077 806,2077 806,3379 1408,3379"/>
<polygon fill="#404040" stroke="none" points="1426,3379 1395,3361 1395,3396"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1457,1860 L 1023,2077 L 1457,2294 L 1891,2077 Z"/>
<text x="1457" y="2033" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1457" dy="62" unicode-bidi="embed">strcmp(stu[i].name, x) == 0</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2077,2480 2077,2586"/>
<polygon fill="#404040" stroke="none" points="2077,2604 2094,2573 2059,2573"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2077,2728 2077,3113"/>
<polygon fill="#404040" stroke="none" points="2077,3131 2094,3100 2059,3100"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1829,2356 L 1767,2480 L 2325,2480 L 2387,2356 Z"/>
<text x="2077" y="2374" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2077" dy="62" unicode-bidi="embed">Output %ld\t%s\t</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2325,2666 2542,2666 2542,2772"/>
<polygon fill="#404040" stroke="none" points="2542,2790 2559,2759 2524,2759"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="2542,2914 2542,3007 2139,3007 2139,2745"/>
<polygon fill="#404040" stroke="none" points="2139,2728 2121,2758 2156,2758"/>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 2325,2790 L 2263,2914 L 2759,2914 L 2821,2790 Z"/>
<text x="2542" y="2808" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2542" dy="62" unicode-bidi="embed">Output %.0f\t</tspan>
</text>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 1891,2604 L 1829,2666 L 1891,2728 L 2263,2728 L 2325,2666 L 2263,2604 Z"/>
<text x="2077" y="2622" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2077" dy="62" unicode-bidi="embed">j = 0 to m-1</tspan>
</text>
</g>
<text x="2418" y="2560" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2418" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="1968" y="2746" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1968" dy="62" unicode-bidi="embed">Done</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 1829,3131 L 1767,3255 L 2325,3255 L 2387,3131 Z"/>
<text x="2077" y="3149" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="2077" dy="62" unicode-bidi="embed">Output .0f\t%.0f\n</tspan>
</text>
</g>
</g>
<g>
</g>
<ellipse cx="1457" cy="3379" rx="31" ry="31" fill="#C04040" stroke="#602020" stroke-width="4"/>
<text x="1984" y="1971" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="1984" dy="62" unicode-bidi="embed">True</tspan>
</text>
<text x="914" y="1971" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="914" dy="62" unicode-bidi="embed">False</tspan>
</text>
</g>
<g>
<path fill="#FFE0A0" stroke="#A08040" stroke-width="4" stroke-dasharray="none" d="M 403,1674 L 341,1736 L 403,1798 L 775,1798 L 837,1736 L 775,1674 Z"/>
<text x="589" y="1692" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="589" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
</text>
</g>
<text x="930" y="1630" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="930" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="480" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="480" dy="62" unicode-bidi="embed">Done</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 279,3627 L 217,3751 L 899,3751 L 961,3627 Z"/>
<text x="589" y="3645" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="589" dy="62" unicode-bidi="embed">Output \nNot found!\n</tspan>
</text>
</g>
</g>
</g>
</svg>
Side by Side

Before

Width:  |  Height:  |  Size: 11 KiB

195
SearchbyNum.svg
Unescape View File

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created by Flowgorithm 3.4.2 (http://flowgorithm.org) -->
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" version="1.1" width="2728" height="4712">
<rect x="0" y="0" width="2728" height="4712" fill="#FFFFFF"/>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,310 558,385"/>
<polygon fill="#404040" stroke="none" points="558,403 575,372 540,372"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,4371 558,4446"/>
<polygon fill="#404040" stroke="none" points="558,4464 575,4433 540,4433"/>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 279,124 A 93 93, 0, 0 0, 279 310 L 837,310 A 93 93, 0, 0 0, 837 124 Z"/>
<text x="558" y="142" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="558" dy="62" unicode-bidi="embed">SearchbyNum</tspan>
<tspan x="558" dy="62" unicode-bidi="embed">(Integer n, Integer m)</tspan>
</text>
</g>
<g>
<path fill="#F0E0FF" stroke="#9070A0" stroke-width="4" stroke-dasharray="none" d="M 434,4464 A 62 62, 0, 0 0, 434 4588 L 682,4588 A 62 62, 0, 0 0, 682 4464 Z"/>
<text x="558" y="4482" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="558" dy="62" unicode-bidi="embed">End</tspan>
</text>
</g>
<g>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,558 558,633"/>
<polygon fill="#404040" stroke="none" points="558,651 575,620 540,620"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,806 558,881"/>
<polygon fill="#404040" stroke="none" points="558,899 575,868 540,868"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1054 558,1129"/>
<polygon fill="#404040" stroke="none" points="558,1147 575,1116 540,1116"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1333 558,1408"/>
<polygon fill="#404040" stroke="none" points="558,1426 575,1395 540,1395"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1550 558,1656"/>
<polygon fill="#404040" stroke="none" points="558,1674 575,1643 540,1643"/>
<polyline fill="none" stroke="#404040" stroke-width="8" stroke-dasharray="none" points="558,1798 558,3826"/>
<polygon fill="#404040" stroke="none" points="558,3844 575,3813 540,3813"/>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 310,403 L 310,558 L 806,558 L 806,403 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="310,434 806,434"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="341,403 341,558"/>
<text x="573" y="452" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="573" dy="62" unicode-bidi="embed">Integer number</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 372,651 L 372,806 L 744,806 L 744,651 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="372,682 744,682"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,651 403,806"/>
<text x="573" y="700" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="573" dy="62" unicode-bidi="embed">Integer i</tspan>
</text>
</g>
<g>
<path fill="#FFFFD0" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" d="M 372,899 L 372,1054 L 744,1054 L 744,899 Z"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="372,930 744,930"/>
<polyline fill="none" stroke="#A0A070" stroke-width="4" stroke-dasharray="none" points="403,899 403,1054"/>
<text x="573" y="948" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="573" dy="62" unicode-bidi="embed">Integer j</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 217,1147 L 124,1333 L 899,1333 L 992,1147 Z"/>
<text x="558" y="1165" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="558" dy="62" unicode-bidi="embed">Output Input the number</tspan>
<tspan x="558" dy="62" unicode-bidi="embed"> you want to search:</tspan>
</text>
</g>
<g>
<path fill="#C04040" stroke="#602020" stroke-width="4" stroke-dasharray="none" d="M 403,1426 L 341,1550 L 713,1550 L 775,1426 Z"/>
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<text x="1813" y="2684" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
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<tspan x="2123" dy="62" unicode-bidi="embed">Break</tspan>
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<tspan x="1829" dy="62" unicode-bidi="embed">True</tspan>
</text>
<text x="883" y="1940" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="883" dy="62" unicode-bidi="embed">False</tspan>
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<text x="558" y="1692" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="558" dy="62" unicode-bidi="embed">i = 0 to n-1</tspan>
</text>
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<text x="899" y="1630" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="899" dy="62" unicode-bidi="embed">Next</tspan>
</text>
<text x="449" y="1816" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="449" dy="62" unicode-bidi="embed">Done</tspan>
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<tspan x="558" dy="62" unicode-bidi="embed">i == n</tspan>
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<text x="992" y="4110" fill="#FFFFFF" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
<tspan x="992" dy="62" unicode-bidi="embed">Output \nNot found!\n</tspan>
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<tspan x="837" dy="62" unicode-bidi="embed">True</tspan>
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<text x="263" y="3831" fill="#000000" font-family="Arial" font-size="32pt" text-anchor="middle" direction="ltr">
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Side by Side

Before

Width:  |  Height:  |  Size: 13 KiB

189
SortbyName.svg
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@ -1,189 +0,0 @@
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<tspan x="1705" dy="62" unicode-bidi="embed">name) &lt; 0</tspan>
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<tspan x="2945" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[i].score[t], &amp;</tspan>
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<tspan x="2356" dy="62" unicode-bidi="embed">sum)</tspan>
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<tspan x="2356" dy="62" unicode-bidi="embed">SwapFloat(&amp;stu[i].aver, &amp;stu[j].</tspan>
<tspan x="2356" dy="62" unicode-bidi="embed">aver)</tspan>
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<tspan x="2356" dy="62" unicode-bidi="embed">SwapLong(&amp;stu[i].num, &amp;stu[j].</tspan>
<tspan x="2356" dy="62" unicode-bidi="embed">num)</tspan>
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<polyline fill="none" stroke="#602020" stroke-width="4" stroke-dasharray="none" points="2728,3534 2728,3720"/>
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<tspan x="2356" dy="62" unicode-bidi="embed">SwapChar(stu[i].name, stu</tspan>
<tspan x="2356" dy="62" unicode-bidi="embed">[j].name)</tspan>
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<tspan x="2263" dy="62" unicode-bidi="embed">True</tspan>
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<tspan x="806" dy="62" unicode-bidi="embed">j = i+1 to n-1</tspan>
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<tspan x="1147" dy="62" unicode-bidi="embed">Next</tspan>
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<tspan x="372" dy="62" unicode-bidi="embed">i = 0 to n-2</tspan>
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Side by Side

Before

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240
SortbyScore.svg
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@ -1,240 +0,0 @@
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<tspan x="1860" dy="62" unicode-bidi="embed">Next</tspan>
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Side by Side

Before

Width:  |  Height:  |  Size: 16 KiB

385
StatisticAnalysis.svg
Unescape View File

@ -1,385 +0,0 @@
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<tspan x="2759" dy="62" unicode-bidi="embed">Output %d\t%d\t%.2f%%\n</tspan>
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<tspan x="2542" dy="62" unicode-bidi="embed">True</tspan>
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367
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
// define定义的全局变量
#define MAX_LEN 10 //字符串最大长度
#define STU_NUM 30 //最多的考试人数
#define COURSE_NUM 6 //最多的考试科目
// 结构体的定义
typedef struct student {
long num; //每个学生的学号
char name[MAX_LEN]; //每个学生的姓名
float score[COURSE_NUM]; //每个学生COURSE_NUM门功课的成绩
float sum; //每个学生的总成绩
float aver; //每个学生的平均成绩
}STU;
// 函数声明
int Menu(void); //菜单显示、用户输入函数
void ReadScore(STU stu[], int n, int m); //学生成绩录入函数
void AverSumofEveryStudent(STU stu[], int n, int m); //求每个学生总分和平均分的函数
void AverSumofEveryCourse(STU stu[], int n, int m); //求每门课程总分和平均分的函数
void SortbyScore(STU stu[], int n, int m, int (*compare)(float a, float b)); //选择法将数组 sum 的元素排序的函数
int Ascending(float a, float b); //使数据按升序排序的函数
int Descending(float a, float b); //使数据按降序排序的函数
void SwapFloat(float* x, float* y); //用于交换两个单精度浮点数的函数
void SwapLong(long* x, long* y); //用于交换两个长整型数据的函数
void SwapChar(char x[], char y[]); //用于交换两个字符串的函数
void AsSortbyNum(STU stu[], int n, int m); //选择法将数组 num 的元素值从低到高排序的函数
void SortbyName(STU stu[], int n, int m); //交换法实现字符串按字典顺序排序的函数
void SearchbyNum(STU stu[], int n, int m); //按学号查找学生成绩并显示查找结果的函数
void SearchbyName(STU stu[], int n, int m); //按姓名的字典顺序排出成绩表的函数
void StatisticAnalysis(STU stu[], int n, int m); //统计各分数段的学生人数及所占的百分比的函数
void PrintScore(STU stu[], int n, int m); //打印学生成绩的函数
void WritetoFile(STU record[], int n, int m); //输出学生信息到文件中的函数
void ReadfromFile(STU record[], int* n, int* m); //从文件中读取学生信息的函数
// 主函数
int main(void)
{
char ch;
int n = 0, m = 0;
STU stu[STU_NUM];
printf("Input student number(n<%d):", STU_NUM);
scanf("%d", &n);
printf("Input course number(m<=%d):", COURSE_NUM);
scanf("%d", &m);
while (1)
{
ch = Menu(); //显示菜单，并读取用户输入
switch (ch)
{
case 1:ReadScore(stu, n, m);
break;
case 2:AverSumofEveryCourse(stu, n, m);
break;
case 3:AverSumofEveryStudent(stu, n, m);
break;
case 4:SortbyScore(stu, n, m, Descending);
printf("\nSort in descending order by score:\n");
PrintScore(stu, n, m);
break;
case 5:SortbyScore(stu, n, m, Ascending);
printf("\nSort in ascending order by number:\n");
PrintScore(stu, n, m);
break;
case 6:AsSortbyNum(stu, n, m);
printf("\nSort in ascending order by number:\n");
PrintScore(stu, n, m);
break;
case 7:SortbyName(stu, n, m);
printf("\nSort in dictionary order by name:\n");
PrintScore(stu, n, m);
break;
case 8:SearchbyNum(stu, n, m);
break;
case 9:SearchbyName(stu, n, m);
break;
case 10:StatisticAnalysis(stu, n, m);
break;
case 11:PrintScore(stu, n, m);
break;
case 12:WritetoFile(stu, n, m);
break;
case 13:ReadfromFile(stu, &n, &m);
break;
case 0: printf("Are you sure you want to exit?(Y/N):");
printf("End of program!");
exit(0);
default:printf("Input error!");
}
}
return 0;
}
// 函数功能：显示菜单并获得用户键盘输入的选项
int Menu(void)
{
int itemSelected;
printf("Management for Students' scores\n");
printf("1 Input record\n");
printf("2 Calculate total and average score of every course\n");
printf("3 Calculate total and average score of every student\n");
printf("4 Sort in descending order by score\n");
printf("5 Sort in ascending order by score\n");
printf("6 Sort in ascending order by number\n");
printf("7 Sort in dictionary order by name\n");
printf("8 Search by number\n");
printf("9 Search by name\n");
printf("10 Statistic analysis\n");
printf("11 List record\n");
printf("12 Write to a file\n");
printf("13 Read from a file\n");
printf("0 Exit\n");
printf("Please Input your choice:");
scanf("%d", &itemSelected); //读入用户输入
return itemSelected;
}
// 函数功能：输入 n 个学生的 m 门课成绩
void ReadScore(STU stu[], int n, int m)
{
int i, j;
printf("Input student's ID ,name and score:\n");
for (i = 0; i < n; i++) //输入n个同学
{
scanf("%ld%s", &stu[i].num, stu[i].name);
for (j = 0; j < m; j++) //输入m门成绩
scanf("%f", &stu[i].score[j]);
}
}
//函数功能：计算每个学生各门课程的总分和平均分
void AverSumofEveryStudent(STU stu[], int n, int m)
{
int i, j;
for (i = 0; i < n; i++)
{
stu[i].sum = 0; //初始化每个学生总分为0
for (j = 0; j < m; j++)
{
stu[i].sum = stu[i].sum + stu[i].score[j]; //累加分数
}
stu[i].aver = m > 0 ? stu[i].sum / m : -1;
printf("student %d: sum = %.0f,aver = %.0f\n", i + 1, stu[i].sum, stu[i].aver);
}
}
//函数功能：计算每门课程的总分和平均分
void AverSumofEveryCourse(STU stu[], int n, int m)
{
int i, j;
float sum[COURSE_NUM], aver[COURSE_NUM];
for (j = 0; j < m; j++)
{
sum[j] = 0;
for (i = 0; i < n; i++)
{
sum[j] += stu[i].score[j]; //计算n个同学每门课程的总分
}
aver[j] = sum[j] / i;
printf("course %d: sum = %.0f,aver = %.0f\n", j + 1, sum[j], aver[j]);
}
}
//函数功能：按选择法将数组 sum 的元素值排序
void SortbyScore(STU stu[], int n, int m, int(*compare)(float a, float b))
{
int i, j, k, t;
for (i = 0; i < n - 1; i++)
{
k = i;
for (j = i + 1; j < n; j++)
{
if ((*compare)(stu[j].sum, stu[k].sum)) k = j;
}
if (k != i)
{
for (t = 0; t < m; t++) //交换m门课程的成绩
{
SwapFloat(&stu[k].score[t], &stu[i].score[t]);
}
SwapFloat(&stu[k].sum, &stu[i].sum); //交换总分
SwapFloat(&stu[k].aver, &stu[i].aver); //交换平均分
SwapLong(&stu[k].num, &stu[i].num); //交换学号
SwapChar(stu[k].name, stu[i].name); //交换姓名
}
}
}
//使数据按升序排序
int Ascending(float a, float b)
{
return a < b; //这样比较决定了按升序排序，如果a<b，则交换
}
//使数据按降序排序
int Descending(float a, float b)
{
return a > b; // 这样比较决定了按降序排序，如果 a>b，则交换
}
//交换两个单精度浮点型数据
void SwapFloat(float* x, float* y)
{
float temp;
temp = *x;
*x = *y;
*y = temp;
}
//交换两个长整型数据
void SwapLong(long* x, long* y)
{
long temp;
temp = *x;
*x = *y;
*y = temp;
}
//交换两个字符串
void SwapChar(char x[], char y[])
{
char temp[MAX_LEN];
strcpy(temp, x);
strcpy(x, y);
strcpy(y, temp);
}
//函数功能：按选择法将数组 num 的元素从低到高排序
void AsSortbyNum(STU stu[], int n, int m)
{
int i, j, k, t;
for (i = 0; i < n - 1; i++)
{
k = i;
for (j = i + 1; j < n; j++)
{
if (stu[j].num < stu[k].num) k = j;
}
if (k != i)
{
for (t = 0; t < m; t++) //交换m门课程的成绩
{
SwapFloat(&stu[k].score[t], &stu[i].score[t]);
}
SwapFloat(&stu[k].sum, &stu[i].sum); //交换总分
SwapFloat(&stu[k].aver, &stu[i].aver); //交换平均分
SwapLong(&stu[k].num, &stu[i].num); //交换学号
SwapChar(stu[k].name, stu[i].name); //交换姓名
}
}
}
//函数功能：交换法实现字符串按字典顺序排序
void SortbyName(STU stu[], int n, int m)
{
int i, j, t;
for (i = 0; i < n - 1; i++)
{
for (j = i + 1; j < n; j++)
{
if (strcmp(stu[j].name, stu[i].name) < 0)
{
for (t = 0; t < m; t++) //交换m门课程的成绩
{
SwapFloat(&stu[i].score[t], &stu[j].score[t]);
}
SwapFloat(&stu[i].sum, &stu[j].sum); //交换总分
SwapFloat(&stu[i].aver, &stu[j].aver); //交换平均分
SwapLong(&stu[i].num, &stu[j].num); //交换学号
SwapChar(stu[i].name, stu[j].name); //交换姓名
}
}
}
}
//函数功能：按学号查找学生成绩并显示查找结果
void SearchbyNum(STU stu[], int n, int m)
{
long number;
int i, j;
printf("Input the number you want to search:");
scanf("%ld", &number);
for (i = 0; i < n; i++)
if (stu[i].num == number)
{
printf("\n");
for (j = 0; j < m; j++)
printf("%d\t", stu[i].score[j]);
printf("\n");
break;
}
if (i == n)
printf("\nNot found!\n");
}
//函数功能：按姓名查找学生成绩并显示查找结果
void SearchbyName(STU stu[], int n, int m)
{
char x[MAX_LEN];
int i, j;
printf("Input the name you want to search:");
scanf("%s", x);
for (i = 0; i < n; i++)
{
if (strcmp(stu[i].name, x) == 0)
{
printf("%ld\t%s\t", stu[i].num, stu[i].name);
for (j = 0; j < m; j++)
{
printf("%.0f\t", stu[i].score[j]);
}
printf(".0f\t%.0f\n", stu[i].sum, stu[i].aver);
return;
}
}
printf("\nNot found!\n");
}
//函数功能：统计各分数段的学生人数及所占的百分比
void StatisticAnalysis(STU stu[], int n, int m)
{
int i, j, t[6];
for (j = 0; j < m; j++)
{
printf("For course %d:\n", j + 1);
memset(t, 0, sizeof(t)); //将数组 t 的全部元素初始化为0
for (i = 0; i < n; i++)
{
if (stu[i].score[j] >= 0 && stu[i].score[j] < 60) t[0]++;
else if (stu[i].score[j] < 70) t[1]++;
else if (stu[i].score[j] < 80) t[2]++;
else if (stu[i].score[j] < 90) t[3]++;
else if (stu[i].score[j] < 100) t[4]++;
else if (stu[i].score[j] == 100) t[5]++;
}
for (i = 0; i <= 5; i++)
{
if (i == 0) printf("<60\t%d\t%.2f%%\n", t[i], (float)t[i] / n * 100);
else if (i == 5) printf("%d\t%d\t%.2f%%\n", (i + 5) * 10, t[i], (float)t[i] / n * 100);
else printf("%d-%d\t%d\t%.2f%%\n", (i + 5) * 10, (i + 5) * 10 + 9, t[i], (float)t[i] / n * 100);
}
}
}
//函数功能：打印学生成绩
void PrintScore(STU stu[], int n, int m)
{
int i, j;
for (i = 0; i < n; i++)
{
printf("%ld\t%s\t", stu[i].num, stu[i].name);
for (j = 0; j < m; j++)
{
printf("%.0f\t", stu[i].score[j]);
}
printf("%.0f\t%.0f\n", stu[i].sum, stu[i].aver);
}
}
//输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中
void WritetoFile(STU stu[], int n, int m)
{
FILE* fp;
int i, j;
if ((fp = fopen("student.txt", "w")) == NULL)
{
printf("Failure to open score.txt!\n");
exit(0);
}
fprintf(fp, "%d\t%d\n", n, m); //将学生人数和课程门数写入文件
for (i = 0; i < n; i++)
{
fprintf(fp, "%10ld%10s", stu[i].num, stu[i].name);
for (j = 0; j < m; j++)
{
fprintf(fp, "%10.0f", stu[i].score[j]);
}
fprintf(fp, "%10.0f%10.0f\n", stu[i].sum, stu[i].aver);
}
fclose(fp);
}
//从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中
void ReadfromFile(STU stu[], int* n, int* m)
{
FILE* fp;
int i, j;
if ((fp = fopen("student.txt", "r")) == NULL)
{
printf("Failure to open score.txt!\n");
exit(0);
}
fscanf(fp, "%d\t%d", n, m); //从文件中读出学生人数，课程门数
for (i = 0; i < *n; i++) //学生人数保存在n指向的储存单元
{
fscanf(fp, "%10ld", &stu[i].num);
fscanf(fp, "%10s", stu[i].name);
for (j = 0; j < *m; j++) //课程门数保存在m指向的储存单元
{
fscanf(fp, "%10f", &stu[i].score[j]); //不能用%10.0f
}
fscanf(fp, "%10f%10f", &stu[i].sum, &stu[i].aver); //不能用%10.0f
}
fclose(fp);
}

312
基本框架的修改.md
Unescape View File

@ -1,312 +0,0 @@
### C1: 启动程序
命令行中执行命令./app,系统启动，显示提示信息，然后显示功能菜单，等待用户输入命令。
```
Management for Students'scores
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice:
```
### C2: 显示命令菜单
调用 Menu() 函数显示命令菜单，用户输入选项后，将结果返回主函数
```
Management for Students'scores
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice:
```
### C3: 退出程序
选择菜单命令 0 ，再输入 y 确认，则退出程序。
```
Please Input your choice: 0
Are you sure you want to exit?(Y/N): y
End of program!
```
### C4: 添加学生信息
选择菜单命令 1 ，假设n=4,m=3,提示输入学生的学号，姓名和成绩，然后利用循环逐个输入学生的学号和姓名以及各科成绩。
```
Please Input your choice: 1
Input student's ID, name and score:
2214111006 XuZilin 100 95 86
2214111009 XuZigui 77 89 99
2214111011 ZhangYu 85 91 98
2214111025 LiYujia 75 89 100
```
### C5: 计算学生各门课程总分和平均分
选择菜单命令 2 ，计算学生各门课程总分和平均分,然后利用循环逐个输出学生的顺序，总成绩和平均分，结果都取整数。
```
Please Input your choice: 2
student 1: sum = 281, aver = 93
student 2: sum = 265, aver = 88
student 3: sum = 274, aver = 91
student 4: sum = 264, aver = 88
```
### C6: 计算每门课程的总分和平均分
选择菜单命令 3 ，计算每门课程的总分和平均分，然后利用循环逐个输出每门课程的总分和平均分，结果都取整数。
```
Please Input your choice: 3
course 1: sum = 337, aver = 84
course 2: sum = 364, aver = 91
course 3: sum = 383, aver = 95
```
### C7: 学生总分排序
如果a < b,则按升序排列。选择菜单命令 4 ，按选择法将数组 sum 的元素值按升序进行排序，显示提示信息，最后打印出学生信息。
如果a > b,则按降序排序。选择菜单命令 5 ，按选择法将数组 sum 的元素值按降序进行排序，显示提示信息，最后打印出学生成绩。
```
Please Input your choice: 4
Sort in descending order by score:
2214111006 XuZilin 100 95 86 281 93
2214111011 ZhangYu 85 91 98 274 91
2214111009 XuZigui 77 89 99 265 88
2214111025 LiYujia 75 89 100 264 88
Please Input your choice: 5
Sort in ascending order by score:
2214111025 LiYujia 75 89 100 264 88
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111006 XuZilin 100 95 86 281 93
```
### C8: 学号顺序排序
选择菜单命令 6 ，按学号从小到大进行排序，显示提示信息，最后打印学生信息。
```
Please Input your choice: 6
Sort in ascending order by number:
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
### C9: 姓名顺序排序
选择菜单命令 7 ，按姓名的字典顺序进行排序，显示提示信息，最后打印学生信息。
```
Please Input your choice: 7
Sort in dictionary order by name:
2214111025 LiYujia 75 89 100 264 88
2214111009 XuZigui 77 89 99 265 88
2214111006 XuZilin 100 95 86 281 93
2214111011 ZhangYu 85 91 98 274 91
```
### C10: 学生信息查询
- 选择菜单命令 8 ，提示输入学生学号，若该学号存在，则输出学生信息；否则提示没有找到并结束。
```
Please Input your choice: 8
Input the number you want to search:2214111011
2214111011 ZhangYu 85 91 98 274 91
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 8
Input the number you want to search:2214111001
Not found!
```
- 选择菜单命令 9 ，提示输入学生姓名，若该姓名存在，则输出学生信息；否则提示没有找到并结束。
```
Please Input your choice: 9
Input the name you want to search:LiYujia
2214111025 LiYujia 75 89 100 264 88
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 9
Input the name you want to search:SunYizhe
Not found!
```
### C11: 统计各分数段学生人数及所占百分比
选择菜单命令 10，提示输入学生成绩，通过循环得出各分数段学生人数及所占百分比
```
Please Input your choice: 10
For course 1:
<60 0 0.00%
60-70 0 0.00%
70-80 2 50.00%
80-90 1 25.00%
90-100 0 0.00%
100 1 25.00%
For course 2:
<60 0 0.00%
60-70 0 0.00%
70-80 0 00.00%
80-90 2 50.00%
90-100 2 50.00%
100 0 0.00%
For course 3:
<60 0 0.00%
60-70 0 0.00%
70-80 0 0.00%
80-90 1 25.00%
90-100 2 50.00%
100 1 25.00%
```
### C12: 打印学生信息
选择菜单命令11，打印
```
Please Input your choice: 11
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
### C13: 将学生信息保存在文件中
选择菜单命令 12 ，将学生信息保存在文件 student.txt 中。如果文件不存在，则给出错误信息并退出程序，否则逐个读入
```
Please Input your choice: 12
Failure to open score.txt!
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 12
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
### 从文件中读取学生信息
选择菜单命令 13 ，从文件中读取学生的学号、姓名及成绩等信息写入到结构体数组 stu 中。如果文件为空，则给出错误信息并退出程序，反之，逐个读入
```
Please Input your choice: 13
Failure to open score.txt!
1 Input record
2 Calculate total and average score of every course
3 Calculate total and average score of every student
4 Sort in descending order by score
5 Sort in ascending order by score
6 Sort in ascending order by number
7 Sort in dictionary order by name
8 Search by number
9 Search by name
10 Statistic analysis
11 List record
12 Write to a file
13 Read from a file
0 Exit
Please Input your choice: 13
2214111006 XuZilin 100 95 86 281 93
2214111009 XuZigui 77 89 99 265 88
2214111011 ZhangYu 85 91 98 274 91
2214111025 LiYujia 75 89 100 264 88
```
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