c++三级项目设计(15)

cout<<setw(9)<<sex[i]; infile>>politic[i]; cout<<setw(9)<<politic[i]; infile>>address[i]; cout<<setw(9)<<address[i]<<endl; }

infile.close();

ofstream outfile("f1.txt",ios::out); if(!outfile) { cerr<<" open error"<<endl; exit(1); }

cout<<"你想修改第几个数据?"<<endl; cin>>k; k=k-1;

cout<<"请输入新的数据："<<endl; cout<<"请输入姓名："<<endl; cin>>name[k];

cout<<"请输入性别："<<endl; cin>>sex[k];

cout<<"请输入政治面貌："<<endl; cin>>politic[k];

cout<<"请输入家庭住址："<<endl; cin>>address[k]; for(i=0;i<N;i++) {

outfile<<num[i]<<" "; outfile<<name[i]<<" "; outfile<<sex[i]<<" "; outfile<<politic[i]<<" "; outfile<<address[i]<<" "<<endl; }

outfile.close();

cout<<"已修改成功！"<<endl; }

void student::search() {

int i,n,w=0,num[M],a[M];char ch;

string searchname,name[M],sex[M],politic[M],address[M],b[M][4]; cout<<"a.按学号查找 b.按姓名查找"<<endl; ifstream infile("f1.txt",ios::in);