gg.rar_visual c_文件查找删除

#include<iostream> #include<fstream> #include<stdio.h> #include<conio.h> #include<string> using namespace std; void Get(void); void Out(void); void Getout(void); void Find(void); void Del(void); int main() { int a; while(1){ system("cls"); cout<<"----------------欢迎来到这里，请指示：--------------"<<'\n'; cout<<"----------------1、承认你是pig！--------------------"<<'\n'; cout<<"----------------2、记录你的身份---------------------"<<'\n'; cout<<"----------------3、文件读取并显示数据---------------"<<'\n'; cout<<"----------------4、查询-----------------------------"<<'\n'; cout<<"----------------5、删除-----------------------------"<<'\n'; cout<<"----------------6、退出-----------------------------"<<endl; cout<<"请输入你要执行工作的序号,按回车键进行："<<'\n'; cin>>a; switch(a){ case 1: system("cls"); cout<<"What you want is below:"<<'\n'; Get(); cout<<"Please take any key to show over......"<<'\n'; getch(); break; case 2: system("cls"); cout<<"请输入以下所需的内容："<<endl; Out(); break; case 3: system("cls"); cout<<"读取的内容如下："<<endl; Getout(); break; case 4: system("cls"); cout<<"请输入以下提示的内容："<<endl; Find(); break; case 5: system("cls"); cout<<"已进入删除模式........"<<endl; Del(); break; case 6: cout<<"马上退出....."<<endl; exit(0); default: cout<<"输入有误，请重新输入："<<endl; break; } } return 0; } void Get(void) { ifstream fin; char str[200]; fin.open("C:\好.txt"); if(!fin){ cout<<"读取文件失败！请确定文件的真实性...."<<endl; cout<<"按任意键返回....."<<endl; getch(); exit(-1); } while(!fin.eof()){ fin.getline(str,199); cout<<str<<endl; } fin.close(); } void Out(void){ ofstream fout("d:\out.txt",ios::app); char str[20];int a; while(1){ cout<<"name:"<<'\t'; cin>>str; fout<<str<<'\t';cout<<'\n'; cout<<"age:"<<'\t'; cin>>str; fout<<str<<'\t';cout<<'\n'; cout<<"sex:"<<'\t'; cin>>str; fout<<str<<'\n';cout<<'\n'; cout<<"已经输出一个人的信息，继续按1，否则按0退出....."<<endl; cin>>a; if(a==0)break; } fout.close(); cout<<"已经输入完毕，按任意键返回......"<<endl; getch(); } void Getout(void) { ifstream fin; char str[200]; fin.open("d:\out.txt"); if(!fin){ cout<<"读取文件失败！请确定文件的真实性...."<<endl; cout<<"按任意键返回....."<<endl; getch(); exit(-1); } cout<<"name"<<"\t\t"<<"age"<<"\t"<<"sex"<<'\n'; while(!fin.eof()){ fin.getline(str,199); cout<<str<<endl; } fin.close(); cout<<"读取文件完毕，按任意键返回......"<<endl; getch(); } void Find(void) { a: ifstream fin; int flag=0,b,length; char str[20]; char f[200];char g[200]; fin.open("d:\out.txt"); if(!fin){ cout<<"Read file is failed!kick any key exit....."<<endl; exit(0); } while(1){ cout<<"请输入要查询者的姓名（英文）："<<'\n'; cin>>str; strcat(str,"\t"); length=strlen(str); cout<<"------------------------------------------------"<<endl; while(fin.getline(f,199)){ //fin.getline(f,199); strcpy(g,f); //cout<<f<<'\n'; if(strncmp(str,f,length)==0){ flag=1; break; } } fin.seekg(0,ios::beg); if(flag==1){ cout<<"所查询的人已经找到："<<'\n'; cout<<"---------------------------------------------"<<endl; cout<<"name"<<"\t\t"<<"age"<<"\t"<<"sex"<<endl; cout<<g<<endl; cout<<"---------------------------------------------"<<endl; flag=0; cout<<"要继续查询按1，否则按0："<<endl; cin>>b; if(b==0)break; } else { fin.close(); cout<<"没有所查询的人的记录,继续按1，否则按0..."<<endl; cin>>b; if(b==0)break; goto a; } } fin.close(); cout<<"查询完毕，按任意键返回......"<<endl; getch(); } void Del(void) { char str[10][80],buf[20]; a: int i=0,flag=100,c=0; ifstream fin("d:\out.txt"); if(!fin){ cout<<"The file open is failed!"<<endl; exit(-1); } cout<<"请输入你要删除的学生姓名："<<endl; cin>>buf; strcat(buf,"\t"); while(fin.getline(str[i],80)){ if(strncmp(str[i],buf,strlen(buf))==0){ flag=i; } i++; } fin.close(); if(flag==100){ cout<<"没有你所要删除的人！重新按1，否则0....."<<endl; int b; cin>>b; if(b==1)goto a; else c=1; } if(c==0){ ofstream fout("d:\out.txt"); for(int j=0;j<i;j++){ if(j==flag)continue; fout<<str[j]<<endl; } fout.close(); cout<<"已找到要删除的人并已删除，继续按1，否则0....."<<endl; int b; cin>>b; if(b==1)goto a; } cout<<"操作已经结束，按任意键返回......"<<endl; getch(); }