#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>
struct time
{int hour;
int minute;
int second;};
typedef struct
{char num[30];
char banji;
int flag;
char name[20];
struct time kaishi,jiesu;
}student;
student stu[50];
struct computer
{int f;
student stut;
}com[30];
int k;
int main_menu()
{char c;
do
{system("cls");
printf("\t**********机房收费管理系统**********\n");
printf("\t|1.输入学生信息及上机时间|\n");
printf("\t|2.下机时间|\n");
printf("\t|3.查询上机时间及费用|\n");
printf("\t|4.电脑使用情况显示|\n");
printf("\t|0.退出系统|\n");
printf("\t**************************\n");
printf("\t请选择菜单序号(0-4):");
c=getchar();
}while(c<'0'||c>'4');
return(c-'0');}
int input(student stu[],int n)
{int i=0;
char sign='0';
while(sign!='n'&&sign!='N')
{getchar();
printf("\n\t\t学号:");
gets(stu[n+i].num);
printf("\t\t班级:");
scanf("%s",&stu[n+i].banji);
getchar();
printf("\t\t姓名:");
gets(stu[n+i].name);
printf("\t\t继续输入?是请按Y,否请按N:");
scanf("%c",&sign);
stu[n+i].flag=0;
k=n+i;
com[k].f=0;
i++;
}
return(n+i);
}
void shangji(student stu[],int n)
{char num_t[30],name_t[20];
int i,s;