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#include<stdio.h>
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#include<string.h>
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#include<process.h>
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#include<stdlib.h>
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#include<windows.h>
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struct people
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{
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char name[20];
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char nativePlace[20];
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char phoneNumber1[20];
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char phoneNumber2[20];
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char email[25];
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};
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void menu()
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{
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system("cls");
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printf("\n\n\n\n\n");
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printf("\t\t|-------------小型通信录系统----------------|\n");
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printf("\t\t|\t 0.信息录入 |\n");
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printf("\t\t|\t 1.信息浏览 |\n");
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printf("\t\t|\t 2.信息查询 |\n");
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printf("\t\t|\t 3.信息修改 |\n");
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printf("\t\t|\t 4.退出系统 |\n");
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printf("\t\t|-------------------------------------------|\n");
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}
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int main(){
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FILE *fp;
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int c,i,j,k,l;//k用于结束判断；i用于主系统进入子系统判断； c用于子系统内的循环
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char p1[20],p2[20],p3[20];
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struct people people[1000];
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for(;;){
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menu();
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scanf("%d",&i);
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if(i==4){
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printf("已退出系统！");break;
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}
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else{
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switch(i){
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//录入系统
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case 0:
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if((fp=fopen("D:\\c语言\\通信录.txt","a"))==NULL){
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printf("文件打开错误");
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}
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for(;;){
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getchar();//吃回车符
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printf("请输入姓名\n");
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gets(people[0].name);
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fputs(people[0].name,fp);
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fputs("\n",fp);
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printf("请输入籍贯\n");
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gets(people[0].nativePlace);
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fputs(people[0].nativePlace,fp);
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fputs("\n",fp);
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printf("请输入电话号码1\n");
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gets(people[0].phoneNumber1);
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fputs(people[0].phoneNumber1,fp);
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fputs("\n",fp);
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printf("请输入电话号码2\n");
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gets(people[0].phoneNumber2);
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fputs(people[0].phoneNumber2,fp);
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fputs("\n",fp);
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printf("请输入电子邮箱\n");
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gets(people[0].email);
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fputs(people[0].email,fp);
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fputs("\n",fp);
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fputs("\n",fp);
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printf("是否退出录入！\n结束请输入0，继续请输入1\n");
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scanf("%d",&k);
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if(k==0){
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break;
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}
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else
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continue;
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}
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fclose(fp);
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break;
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//浏览系统
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case 1:
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if((fp=fopen("D:\\c语言\\通信录.txt","r"))==NULL){
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printf("文件打开错误");
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}
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c=0;
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printf("------------------------通信录------------------------\n");
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while(fgets(p1,20,fp)!=NULL){
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switch(c){
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case 0:printf("name:");c++;break;
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case 1:printf("nativePlace:");c++;break;
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case 2:printf("phoneNumber1:");c++;break;
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case 3:printf("phoneNumber2:");c++;break;
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case 4:printf("email:");c++;break;
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case 5:c=0;break;
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}
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printf("%s",p1);
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}
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fclose(fp);
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printf("是否退出浏览！\n结束请输入0\n");
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scanf("%d",&k);
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if(k==0){
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break;
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}
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else
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break;
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//查询系统
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case 2:
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if((fp=fopen("D:\\c语言\\通信录.txt","r"))==NULL){
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printf("文件打开错误");
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}
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for(;;){
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printf("请输入你需要查询信息的人的姓名\n");
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gets(p2);
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gets(p1);
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strcat(p1,"\n");
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printf("------------------------通信录------------------------\n");
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while((fgets(p3,20,fp))!=NULL){
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c=0;
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if(strcmp(p1,p3)==0){
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printf("name:%s",p3);
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while(fgets(p3,20,fp)!=NULL){
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if(strcmp(p3,"\n")==0)
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break;
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else{
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switch(c){
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case 0:printf("nativePlace:");printf("%s",p3); c++;break;
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case 1:printf("phoneNumber1:");printf("%s",p3);c++;break;
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case 2:printf("phoneNumber2:");printf("%s",p3);c++;break;
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case 3:printf("email:");printf("%s\n",p3);c++;break;
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}
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}
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}
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}
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}
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printf("\n是否退出查询！\n结束请输入0，继续请输入1\n");
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scanf("%d",&k);
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if(k==0)
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break;
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else{
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rewind(fp);
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continue;
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}
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}
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break;
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//修改系统
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case 3:
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if((fp=fopen("D:\\c语言\\通信录.txt","r+"))==NULL){
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printf("文件打开错误");
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}
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char pp[1000][20];
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for(;;){
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getchar();
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for(l=0;fgets(pp[l],20,fp)!=NULL;l++){
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c=l;
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}//把文件的数据输出到二维数组pp中
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printf("请输入你需要修改信息的人的姓名\n");
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gets(p1);
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strcpy(p2,p1);
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strcat(p1,"\n");
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l=0;
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for(;l<c;l++){
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while(strcmp(p1,pp[l])!=0){
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l+=1;
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}//将指针指到需改的人的姓名这个一维数组
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printf("修改籍贯请输入0，修改电话1输入1，修改电话2输入2，修改邮箱输入3！\n");
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scanf("%d",&j);
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switch(j){
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case 0:printf("请修改%s的籍贯\n当前籍贯为：",p2);break;
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case 1:printf("请修改%s的电话1\n当前电话1为：",p2);break;
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case 2:printf("请修改%s的电话2\n当前电话2为：",p2);break;
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case 3:printf("请修改%s的邮箱\n当前邮箱为：",p2);break;
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}
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printf("%s",pp[j+l+1]);//输出当前数据
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//把二维数组中的某一个一维数组修改
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printf("请输入修改的值：");
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getchar();//吃回车符
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gets(pp[j+l+1]);
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strcat(pp[j+l+1],"\n");
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}
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rewind(fp);
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for(l=0;l<=c;l++)
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fputs(pp[l],fp);//把二维数组在输进文件
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printf("修改成功！\n\n是否退出修改！\n结束请输入0，继续请输入1\n");
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scanf("%d",&k);
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if(k==0)
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break;
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else{
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rewind(fp);
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continue;
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}
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}
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fclose(fp);
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break;
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}
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}
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}
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return 0;
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}
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