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我已經創建了一個帶有列表的系統登錄,但每當我添加新用戶時,舊用戶都將被刪除。如何創建用戶列表?在C++中創建用戶列表
空隙userRegisterDo() {
ofstream usersFile ("userData.txt");
if ( !usersFile.is_open())
{
usersFile.open("userData.txt");
}
usersFile << username << " " << password << endl;
usersFile.close();
system("cls");
login();
}
// Initialize user registration
void userRegister()
{
cout << "Welcome!\n-------------------------\n\nPlease register.\nEnter a new username:\n";
cin >> username;
cout << "\nPlease enter a new password:\n";
cin >> password;
userRegisterDo();
}
我在哪裏把fstream :: app? – user2947488
像這樣 - 'ofstream usersFile(「userData.txt」,fstream :: app);' – theharshest
歡呼的隊友,謝謝 – user2947488