为什么我的文件 'database2' 是空的并且没有文件被重命名?在注释中说明问题的部分之后,文件“database2”变为 0 字节。文件“database2”也没有被重命名,文件“database”也没有被删除。请帮助我,这是我的代码的一部分:
int edit(){
char KeyStroke;
std::string strings;
string name;
string name1;
std::string dummy;
std::string strings2;
std::string strings3;
ifstream myfile;
ofstream myfile1;
bool found = false;
myfile.open("database");
cout << endl << "What is the name of the contact you wish to go in detail?" << endl;
getline(cin, name);
while ( !found && getline (myfile ,strings) ) {
if (strings.find(name) != std::string::npos) {
cout << endl << "Name:\t\t" << strings<<endl;
std::getline( myfile, strings );
cout << "Address:\t" << strings<<endl;
std::getline( myfile, strings );
cout << "Handphone:\t" << strings;
}
}
start:
cout << endl <<endl;
cout << "What do you wish to edit?"<<endl;
cout << "1) Name"<<endl;
cout << "2) Address"<<endl;
cout << "3) Handphone"<<endl;
cout << "4) Nothing" << endl;
myfile.close();
/*--Main part of this code is from here onwards--*/
lol:
myfile.open("database");
myfile1.open("database2");
KeyStroke = getch();
switch(KeyStroke){
case '1':
cout << "What is the new name: ";
getline(cin, name1);
while ( !myfile.eof()) {
getline (myfile ,strings);
if (strings.find(name) != std::string::npos) {
myfile1 << name1 << endl;
}
else{
if(strings[0] == ' '){
continue;
}
myfile1 << strings << endl;
}
}
myfile1 << " ";
myfile1.close(); /*Once the file closes here, the data written in earlier dissapears*/
myfile.close();
remove("database");
pause1();
rename("database2","database");
goto start;