ADD file via upload

学生信息管理系统(1).py

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+def input_info():
+    infile_info = open('infile.txt', 'a')  # 以追加的方式向文件中写入数据，如果文件不存在就创建一个文件
+    flag = 'y'
+    # 向文件中录入课程信息，每一个课程的信息单独占一行
+    while flag == 'y' or flag == 'Y':
+        stu_id = input("请输入课程编号：")
+        stu_name = input("请输入课程名称：")
+        stu_score_eng = input("请输入课程性质：")
+        stu_score_py = input("请输入总学时：")
+        stu_score_hour = input("请输入授课学时：")
+        stu_score_shour = input("请输入实验学时：")
+        stu_score_credit = input("请输入学分：")
+        stu_score_term = input("开课学期：")
+        stu_info = stu_id + '\t\t\t' + stu_name + '\t\t\t' + stu_score_eng + '\t\t\t' + stu_score_py + '\t\t\t' + stu_score_hour +'\t\t\t' +stu_score_shour+ '\t\t\t' +stu_score_credit +'\t\t\t' +stu_score_term +'\t\t\t'+'\n'
+
+        infile_info.write(stu_info)
+        flag = input("是否继续添加学生信息？y/n")
+    print("信息录入完毕！！！")
+    infile_info.close()
+# 查询课程信息
+# 查询时分为按课程号和按课性质查找两种
+def find_info():
+    flag = 'y'
+    while flag == 'y' or flag == 'Y':
+        n = 0
+        m = 0  # 定义m，n是为了用作判断文件中是否有此课程的标记
+        findfile_info = open('infile.txt', 'r')  # 以可读方式打开文件
+        line_info = findfile_info.readlines()
+        find_nid = input("按课程号查找请输入1，按课程性质查找请输入2：")  # 查询时分为按课程号和按课性质查找两种
+        if find_nid == '1':
+            find_id = input('请输入课程号：')
+            for line in line_info:
+                if find_id in line:
+                    print(line)
+                    n = n + 1
+            if n == 0:
+                print("没有查询到课程信息，无数据显示！！！")
+        if find_nid == '2':
+            find_eng = input('请输入课程性质：')
+            for line in line_info:
+                if find_eng in line:
+                    print(line)
+                    m = m + 1
+            if m == 0:
+                print("没有查询到课程信息，无数据显示！！！")
+        findfile_info.close()
+        flag = input("是否继续查询课程信息？y/n")
+#学生选修课程
+def choos_sourse():
+    infile_info = open('student.txt', 'a')
+    findfiles_info = open('infile.txt', 'r')  # 以可读方式打开文件
+    lines_info = findfiles_info.readlines()
+    student_name=input('输入你的姓名：')
+    choos_id = input('请输入课程名(若无此课程，自动退出！)：')
+    for line in lines_info:
+        if choos_id in line:
+            print('选课成功！')
+            choos_info = student_name + '\t\t\t' + choos_id + '\n'
+            infile_info.write(choos_info)
+# 统计课程总数
+def sum_info():
+    sumfile_info = open('infile.txt', 'r')
+    line_info = sumfile_info.readlines()
+    sum_stu = len(line_info)  # 写出列表中的元素个数
+    print("一共有{0}门课程。".format(sum_stu))
+    sumfile_info.close()
+# 显示课程信息
+def show_info():
+    print("课程编号", end='\t\t')
+    print("课程名称", end='\t\t')
+    print("课程性质", end='\t\t')
+    print("总学时", end='\t\t')
+    print("授课学时", end='\t\t')
+    print("实验学时", end='\t\t')
+    print("学分", end='\t\t')
+    print("开课学期", end='\t\t')
+    print('\n')
+    showfile_info = open('infile.txt', 'r')
+    line_info = showfile_info.readlines()
+    for line in line_info:  # 遍历列表，输出各个元素
+        print(line)
+    showfile_info.close()
+#显示选课信息
+def show_chooses():
+    print("姓名", end='\t\t')
+    print("已选课程", end='\t\t')
+    print('\n')
+    showfile_info = open('student.txt', 'r')
+    line_info = showfile_info.readlines()
+    for line in line_info:  # 遍历列表，输出各个元素
+        print(line)
+    showfile_info.close()
+def show_choose():
+    print("==========================学生选修课程系统==========================")
+    print()
+    print("-----------------------------功能菜单------------------------------")
+    print()
+    print("                         1.录入选课信息")
+    print("                         2.查找课程信息")
+    print("                         3.显示选修课程")
+    print("                         4.学生选修课程")
+    print("                         5.统计课程总数")
+    print("                         6.学生选课信息")
+    print("                         0.退出选修课程系统")
+    print()
+    print("------------------------------------------------------------------")
+
+def main():
+    show_choose()
+    choose_menu = input("请选择：")
+    while choose_menu != '0':
+        if choose_menu == '1':
+            input_info()
+        if choose_menu == '2':
+            find_info()
+        if choose_menu == '3':
+            show_info()
+        if choose_menu == '4':
+            choos_sourse()
+        if choose_menu == '5':
+            sum_info()
+        if choose_menu == '6':
+            show_chooses()
+        choose_menu = input("请选择：")
+    print("欢迎您再次使用！！！")
+
+
+main()