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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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#include<windows.h>
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#define N 100
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struct student
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{
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char id[10];
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char name[25];
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char sex[10];
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int age;
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char jiguan[25];
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char xibie[25];
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char zhuanye[25];
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int ban;
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}stu[N];
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void menu()
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{
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int choice,w1;
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void add();void find();void shanchu();void change();void tongji();void read();void input();
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do
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{
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puts("\t--------------------------------------------------------");
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puts("\t| 欢迎使用学籍管理系统 |");
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puts("\t|------------------------------------------------------|");
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puts("\t| 1.录入学生资料 |");
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puts("\t| 2.查找学生资料 |");
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puts("\t| 3.删除学生资料 |");
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puts("\t| 4.修改学生资料 |");
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puts("\t| 5.按学号或专业输出学生资料 |");
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puts("\t| 6.查看所有学生资料 |");
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puts("\t| 7.退出系统 |");
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puts("\t--------------------------------------------------------");
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printf("想选择的功能：");
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scanf("%d",&choice);
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if(choice<1||choice>8)
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{w1=1;system("cls");printf("菜单选择错，请重新选择！\n");}
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else w1=0;
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}while(w1==1);
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switch (choice)
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{
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case 1:
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add();
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break;
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case 2:
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find();
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break;
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case 3:
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shanchu();
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break;
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case 4:
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change();
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break;
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case 5:
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tongji();
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break;
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case 6:
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read();
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break;
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case 7:
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break;
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default: exit(0);
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}
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}
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int load()
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{
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FILE *fp;
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int i;
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if ((fp=fopen("results.txt","rb"))==NULL)
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{
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printf("文件打开错误");
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return 0;
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}
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for (i=0;!feof(fp);i++)fread(&stu[i],sizeof(struct student),1,fp);
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fclose(fp);
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return(i-1);
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}
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void save(int n)
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{
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int i;
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FILE *fp;
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if ((fp=fopen("results.txt","wb"))==NULL)
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{
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printf("文件打开错误:");
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}
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for (i=0;i<n;i++)fwrite(&stu[i],sizeof(struct student),1,fp);
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fclose(fp);
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}
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void read()
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{
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int n,m;
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n=load();
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printf("学号\t姓名\t性别\t年龄\t籍贯\t系别\t专业\t班级\t");
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for (m=0;m<n;m++)
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{
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printf("\n%s",stu[m].id);
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printf("\t%s",stu[m].name);
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printf("\t%s",stu[m].sex);
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printf("\t%d",stu[m].age);
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printf("\t%s",stu[m].jiguan);
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printf("\t%s",stu[m].xibie);
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printf("\t%s",stu[m].zhuanye);
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printf("\t%d",stu[m].ban);
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}
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{
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int xz,choice;
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do
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{
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printf("\n1-返回主菜单；2-退出系统\n");
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scanf("%d",&choice);
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if(choice<1||choice>2)
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{xz=1;system("cls");printf("输入错误，请重新选择！\n");}
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else xz=0;
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}while(xz==1);
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switch(choice)
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{
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case 1:
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menu(); break;
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case 2:
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exit(0); break;
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}
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}
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}
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void add()
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{
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FILE *fp;
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int i,n,m;
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n=load();
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if ((fp=fopen("results.txt","wb"))==NULL)
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{
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printf("文件打开错误!\n");
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exit(1);
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}
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printf("你想要录入多少个学生信息?");
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scanf("%d",&m);
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for (i=0;i<m;i++)
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{
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printf("\n学号:");
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scanf("%s",stu[n+i].id);
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printf("姓名:");
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scanf("%s",stu[n+i].name);
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printf("性别:");
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scanf("%s",stu[n+i].sex);
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printf("年龄:");
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scanf("%d",&stu[n+i].age);
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printf("籍贯:");
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scanf("%s",stu[n+i].jiguan);
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printf("系别:");
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scanf("%s",stu[n+i].xibie);
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printf("专业:");
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scanf("%s",stu[n+i].zhuanye);
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printf("班级:");
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scanf("%d",&stu[n+i].ban);
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printf("输入完成");
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save(n+m);
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}
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for (i=0;i<m;i++)fwrite(&stu[i],sizeof(struct student),1,fp);
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fclose(fp);
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{
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int xz,choice;
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do
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{
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printf("\n1-返回主菜单；2-退出系统\n");
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scanf("%d",&choice);
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if(choice<1||choice>2)
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{xz=1;system("cls");printf("输入错误，请重新选择！\n");}
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else xz=0;
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}while(xz==1);
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switch(choice)
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{
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case 1:
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menu(); break;
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case 2:
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exit(0); break;
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}
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}
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}
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void find()
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{
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int meau();
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int n,i;
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char m[10];
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n=load();
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printf("\t\t\t欢迎使用学号查找功能\n请输入你需要查找的学生的学号:");
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scanf("%s",&m);
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for (i=0;i<n;i++)
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{ if (!strcmp(stu[i].id,m))
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{
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printf("学号\t姓名\t性别\t年龄\t籍贯\t系别\t专业\t班级\n");
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printf("%s",stu[i].id);
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printf("\t%s",stu[i].name);
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printf("\t%s",stu[i].sex);
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printf("\t%d",stu[i].age);
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printf("\t%s",stu[i].jiguan);
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printf("\t%s",stu[i].xibie);
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printf("\t%s",stu[i].zhuanye);
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printf("\t%d\n",stu[i].ban);
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}
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}
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{
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int xz,choice;
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do
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{
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printf("\n1-返回主菜单；2-退出系统\n");
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scanf("%d",&choice);
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if(choice<1||choice>2)
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{xz=1;system("cls");printf("输入错误，请重新选择！\n");}
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else xz=0;
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}while(xz==1);
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switch(choice)
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{
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case 1:
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menu(); break;
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case 2:
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exit(0); break;
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}
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}
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}
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