【c++11关键字】noexcept

/*
 * c++11关键字
 * noexcept
 * 告诉编译器不会报异常
 * 小鱼号的代码日志
*/
#include <QCoreApplication>
#include <iostream>
using namespace  std;
void f() noexcept
{
    cout << "hello" << endl;
}
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    f();
    return a.exec();
}