C++ 布尔类型显示判断结果

添加cout.setf(ios_base::boolalpha);语句。

#include <iostream>
using namespace std;
int main() {
 int x = 100;
 cout << "x = " << x << endl;
 cout << (x > 3) << endl;
 cout << (x < 3) << endl;
 cout.setf(ios_base::boolalpha);//bool类型显示
 cout << (x > 3) << endl;
 cout << (x < 3) << endl;
 system("pause");
 return 0;
}