C ++如何让程序在到达终点后重新启动？

Question

我已经编程了大约一个星期左右，但我无法弄清楚如何在完成后用 C++ 重新启动程序。有人能帮我吗？

我写了这个初学者字母等级程序，它根据你的分数告诉你，你得到了什么字母等级。但正如我所说，一旦你到达终点并得到答案，程序就会像预期的那样结束，但我希望它重新启动并让我输入另一个数字。谢谢！

#include <iostream>

using namespace std;

int main()
{

long int grade;
string x = " ";


cout << "Please, enter your grade. (0-100)" << endl;
cin >> grade;

int P =grade == 100;
int A =grade >= 90;
int B =grade >= 80;
int C =grade >= 70;
int D =grade >= 60;
int F =grade >=  0;

if(P){cout << "You have a perfect score." << endl << endl;}else{
if(A){cout <<"You have an A." << endl<< endl; }else{
    if(B){cout <<"You have a B." << endl << endl;}else{
        if(C){cout <<"You have a C." << endl;}else{
            if(D){cout <<"You have a D." << endl<< endl;}else{
                if(F){cout <<"You have an F."<< endl<< endl;}else{
                    cout << "Invalid input.";
                }
            }
        }
    }
 } 
}
  cout << "Enter x to finish the program" << endl << endl;
cin >> x;

}

Answer 1

将整个代码放在一个 do while 循环中，直到用户输入 0 停止程序。

像这样：

int input = 0;
do
{
     //You need to put your entire code here!

cin >> input;
}while(input != 0)

C ++如何让程序在到达终点后重新启动？

C ++ How to make the program restart once you've reached the end?

c++

restart