有关vs中c++的ctrl+z的后续问题

Question

vector ivec;
int num,a;
cout << "please enter the vector" << endl;

while (cin >> num)
    ivec.push_back(num);
cout << "please enter the element you want to find:";
cin >> a;
cout << a << endl;


无意中突然发现ctrl+z结束vector的输入后，变量a无法输入了，clear(),ingore()都不管用。是Ctrl+z无法清除吗？应该怎么做才能把Ctrl+z给清除了？

Answer 1

[[http://blog.chinaunix.net/uid-23960482-id-111808.html