C++ 退出while循环后最后一个输入不工作

只是好奇如何解决cin的这个小问题

int main(){

    int x,w;
    while(cin>>x){
         cout<<"This is x -> " << x << endl;
    }

    //now this cin will not be executed

    cin>> w;

    cout<< "This is w -> "<< w << endl;

    //prints some garbage value for w

}

intmain（）{
int x，w；
而（cin>>x）{
cout当您通过输入错误的数据类型（非数字输入）退出
时，您需要从流中删除无效的输入。您可以这样做：

while(cin >> x){
    cout << "This is x -> " << x << endl;
}

std::cin.clear();
std::string str;
// read the invalid input from stream in some string 'str'
std::getline(std::cin, a);

// now you can take input normally
std::cin >> w;

while（cin>>x）{
当
While
循环终止时，您会得到垃圾值，因为您必须清除无效的输入流，然后在从用户获取另一个值之前读取标准输入。我为您做了一些事情。我想这可能会对您有所帮助

int main() 
   {
    int x, w;
    while (cin >> x)
    {
        cout << "This is x -> " << x << endl;
    }

    cin.clear();  //removing the invalid input from the stream
    getchar();    //reads from standard input
    cout << "Enter w : " << ' ';
    cin >> w;
    cout << "This is w -> " << w << endl;
    return 0;
}

谢谢！似乎有效。但是，当我运行“echo{1..10}|./filename”时，垃圾值返回。
5
This is x -> 5
4
This is x -> 4
3
This is x -> 3
t

Enter w :  10
This is w -> 10