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#include<stdio.h>
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#include<string.h>
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#include<stdlib.h>
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struct time {
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int hour;
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int minute;
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};
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struct Student {
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long int xuehao;
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char banji[10];
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char name[10];
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int time_hour;
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int time_minute;
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struct time begin,end;
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} ;
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struct Student student[30];
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static int i=0,j;
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void save();
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void insert();
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void end_money();
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void delete_student();
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void select_xuehao();
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void select_name();
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void select_banji();
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void show();
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int main() {
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int menu();
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int i;
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for(;;)
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{
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printf("\t\t*******************菜单**************\n");
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printf("\t\t\n");
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printf("\t\t\n");
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printf("\t\t***************机房收费管理系统*******\n");
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printf("\t\t\n");
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printf("\t\t\n");
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printf("\t\t1.###############输入学生信息:########\n");
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printf("\t\t2.#################上机费用:##########\n");
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printf("\t\t3.################删除档案:###########\n");
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printf("\t\t4.################按学号查询:#########\n");
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printf("\t\t5.################按班级查询:#########\n");
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printf("\t\t6.################按姓名查询:#########\n");
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printf("\t\t7.################显示学生信息:#######\n");
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printf("\t\t8.##################退出系统:#########\n");
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printf("\n\n\n\n请在（1-8）之间选择功能:");
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scanf("%d",&i);
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switch(i)
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{
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case 1:
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{
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system("cls");
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insert();
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}
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break;
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case 2:
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{
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system("cls");
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end_money();
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}
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break;
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case 3:
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{
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system("cls");
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delete_student();
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}
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break;
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case 4:
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{
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system("cls");
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select_xuehao();
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}
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break;
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case 5:
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{
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system("cls");
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select_banji();
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}
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break;
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case 6:
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{
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system("cls");
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select_name();
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}
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break;
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case 7:
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{
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system("cls");
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show();
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} break;
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case 8:
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{
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exit(0);
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}
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break;
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}
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}
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printf("\n"); system("pause");
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save();
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return 0;
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}
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void insert() {
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printf("请输入学号:");
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scanf("%ld",&student[i].xuehao);
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printf("请输入姓名:");
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scanf("%s",student[i].name);
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printf("请输入班级:");
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scanf("%s",student[i].banji);
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printf("请输入上机时间:");
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scanf("%d:%d",&student[i].begin.hour,&student[i].begin.minute);
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i = i + 1;
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printf("人数：%d",i);
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j=i;
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save();
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printf("\n"); system("pause");
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system("cls");
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}
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void end_money() {
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int m,minute,hour;
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char xuehao;
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printf("请输入学号:");
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scanf("%ld",&xuehao);
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for(m = 0; m < i; m++)
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{
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if(student[m].xuehao==xuehao)
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{
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printf("请输入%ld的下机时间:",xuehao);
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scanf("%d:%d",&student[m].end.hour,&student[m].end.minute);
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if(student[m].end.minute<student[m].begin.minute)
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{
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minute=student[m].end.minute+60
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-student[m].begin.minute;
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hour=student[m].end.hour-1-student[m].begin.hour;
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student[m].time_hour = hour;
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student[m].time_minute = minute;
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}
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else
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{
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minute=student[m].end.minute -student[m].begin.minute;
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hour=student[m].end.hour -student[m].begin.hour;
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student[m].time_hour = hour;
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student[m].time_minute = minute;
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}
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if(minute > 0)
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{
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hour = hour + 1;
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printf("上机时间为:%d:%d 费用为:%d",student[m].time_hour,student[m].time_minute,hour);
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}
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else {
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printf("上机时间为:%d:%d\n 费用为:%d",student[m].time_hour,student[m].time_minute,hour);
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}
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}
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}
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save();
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printf("\n"); system("pause");
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system("cls");
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}
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void delete_student()
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{
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long int xuehao;
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int m;
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printf("请输入学号:");
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scanf("%ld",&xuehao);
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if(i==1)
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{
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if(student[m].xuehao==xuehao)
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printf("没有数据!");
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}
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else{
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for(m=0;m<i;m++)
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if(student[m].xuehao==xuehao)break;
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for(;m<i;m++) student[m]=student[m+1];
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}
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save();
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printf("\n");
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system("pause");
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system("cls");
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}
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void select_xuehao() {
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long int xuehao;
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int m;
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printf("请输入学号:");
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scanf("%ld",&xuehao);
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for(m = 0; m < i; m++)
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{
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if(student[m].xuehao==xuehao)
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{
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printf("学号:%ld\t",student[m].xuehao);
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printf(" 班级:%s\t",student[m].banji);
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printf("姓名:%s\t",student[m].name);
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printf(" 上机开始时间:%d:%d\t",student[m].begin.hour,student[m].begin.minute);
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printf("上机结束时间:%d:%d\t",student[m].end.hour,student[m].end.minute);
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printf("上机时间:%d:%d\n\t",student[m].time_hour,student[m].time_minute);
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}
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else if( m == i)
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{
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printf("没有该生记录:\n");
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}
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}
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save();
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printf("\n"); system("pause");
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system("cls");
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}
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void select_banji() {
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char banji[10];
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int m;
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printf("请输入班级:");
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scanf("%s",banji);
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for(m = 0; m < i; m++)
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{
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if(!strcmp(banji,student[m].banji)) {
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printf("学号是:%ld\t",student[m].xuehao);
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printf("班级是:%s\t",student[m].banji);
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printf("姓名是:%s\t",student[m].name);
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printf("上机开始时间:%d:%d\t",student[m].begin.hour,student[m].begin.minute);
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printf("上机结束时间:%d:%d\t",student[m].end.hour,student[m].end.minute);
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printf("上机时间为:%d:%d\n",student[m].time_hour,student[m].time_minute);
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}
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else if( m == i)
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{
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printf("没有该生记录:\n");
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}
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}save();
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printf("\n"); system("pause");
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system("cls");
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}
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void select_name()
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{char name[10];
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int m;
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printf("请输入姓名:");
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scanf("%s",name);
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for(m=0;m<i;m++)
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{
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if(!strcmp(name,student[m].name))
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{
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printf("学号为%ld\t",student[m].xuehao);
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printf("班级为%s\t",student[m].banji);
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printf("姓名为%s\t",student[m].name);
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printf("上机开始时间:%d:%d\t",student[m].begin.hour,student[m].begin.minute);
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printf("上机结束时间:%d:%d\t",student[m].end.hour,student[m].end.minute);
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printf("上机时间为:%d:%d\n",student[m].time_hour,student[m].time_minute);
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}
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else if(m==i)
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{
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printf("没有记录:\n");
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}
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}save();
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system("pause");
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system("cls");
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}
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void save()
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{
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FILE *fp;
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int m;
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fp=fopen("学生机房管理.txt","w");
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for(m=0;m<i;m++)
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{
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fprintf(fp,"%ld %s %s %d %d %d %d %d %d %d %d\n",student[m].xuehao,student[m].banji,student[m].name,student[m].begin.hour,student[m].begin.minute,student[m].end.hour,student[m].end.minute,student[m].time_hour,student[m].time_minute);
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}
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fclose(fp);
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}
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void show()
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{
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int m;
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printf("学号 班级 姓名 上机时间 下机时间 用时\n");
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for(m=0;m<i;m++)
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{printf("%ld %s %s %d:%d %d:%d %d:%d\n",student[m].xuehao,student[m].banji,student[m].name,student[m].begin.hour,student[m].begin.minute,student[m].end.hour,student[m].end.minute,student[m].time_hour,student[m].time_minute);
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}
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system("pause");
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system("cls");
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}
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