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void choose(int n) //目录的选项
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{
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system("cls");
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int y;
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switch(n)
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{
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case 1:input();
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printf("\n\n\n\n\t\t\t是否返回？输入1表返回，输入2表退出！\n");
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scanf("%d",&y);
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if(y==1)
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choose(fun());break;
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case 2:output();
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printf("\n\n\n\n\t\t\t是否返回？输入1表返回，输入2表退出！\n");
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scanf("%d",&y);
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if(y==1)
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choose(fun());break;
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case 3:modify();
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printf("\n\n\n\n\t\t\t是否返回？输入1表返回，输入2表退出！\n");
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scanf("%d",&y);
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if(y==1)
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choose(fun());break;
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case 4:lookat();
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printf("\n\n\n\n\t\t\t是否返回？输入1表返回，输入2表退出！\n");
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scanf("%d",&y);
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if(y==1)
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choose(fun());break;
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case 5:section();
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printf("\n\n\n\n\t\t\t是否返回？输入1表返回，输入2表退出！\n");
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scanf("%d",&y);
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if(y==1)
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choose(fun());break;
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case 6:rank();
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printf("\n\n\n\n\t\t\t是否返回？输入1表返回，输入2表退出！\n");
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scanf("%d",&y);
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if(y==1)
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choose(fun());break;
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case 7:exit(0);break;
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default:printf("\n\n\t\t\t 输入没有的选项，请重新输入！\n");
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choose(fun());
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}
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}
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int fun() //目录函数
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{
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int n;
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int i;
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system("cls");
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printf("\n\n\t\t\t\t 成绩记录簿");
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printf("\n\n\t\t\t");
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for(i=0;i<36;i++)
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printf("*");
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printf("\n");
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printf("\t\t\t *************菜单***************\n");
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printf("\t\t\t*|1、创建学生的信息！ \t|*\n");
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printf("\t\t\t*|2、输出所有学生的信息！ \t|*\n");
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printf("\t\t\t*|3、修改成绩！ \t|*\n");
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printf("\t\t\t*|4、查询！ \t|*\n");
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printf("\t\t\t*|5、显示成绩分段的学生信息！ \t|*\n");
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printf("\t\t\t*|6、学生成绩排名！ \t|*\n");
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printf("\t\t\t*|7、退出成绩记录簿！ \t|*\n");
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printf("\t\t\t *****设计者：吕永太 朱鹏俊****\n");
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printf("\t\t\t");
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for(i=0;i<36;i++)
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printf("*");
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printf("\n\n");
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printf("\n\t\t\t 请输入选项：");
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scanf("%d",&n);
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return n;
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}
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