我只是在学习，所以请不要苛责我。我有个问题。我知道如何do do While循环。但今天我学到了关于函数的知识。所以我在函数中做了do-while循环，它是无限循环的。这只是个例子。我很开心，也很麻烦:请帮帮我！！如何停止永远的循环？
#include <iostream>
using namespace std;
void text()
{
cout << "Log in to see the Menu. " << endl;
}
void lg()
{
const string login = "el1oz";
string input;
cout << "Login > " << flush;
cin >> input;
do{
if(login == input){
break;
}
else{
cout << "Try again." << endl;
}
}while(true);
cout << "Correct Login! " << endl;
}
void pw()
{
const string password = "Mau01171995";
string input1;
cout << "Password > " << flush;
cin >> input1;
do{
if(password == input1){
break;
}
else{
cout << "Try again. " << endl;
}
}while(true);
cout << "Correct Passsword! " << endl;
}
int main()
{
text();
lg();
pw();
return 0;
}
输入。您应该将cin>>；在循环中输入。while循环还是使用do while循环。在这种情况下，while循环更好。使用命名空间std；（此处提供更多信息）。#include <iostream>
using std::cin;
using std::string;
using std::cout;
using std::flush;
using std::endl;
void printWelcome()
{
cout << "Log in to see the Menu. " << endl;
}
void inputUser()
{
const string login = "el1oz";
string input;
cout << "Login > " << flush;
while(cin >> input){
if(login == input){
break;
}
else{
cout << "Try again." << endl;
}
}
cout << "Correct Login! " << endl;
}
void inputPassword()
{
const string password = "Mau01171995";
string input;
cout << "Password > " << flush;
while(cin >> input){
if(password == input){
break;
}
else{
cout << "Try again. " << endl;
}
}
cout << "Correct Passsword! " << endl;
}
int main()
{
printWelcome();
inputUser();
inputPpassword();
return 0;
}
