测试一下简书的代码模块

print("hello world")

#include <sstream>
#include <iostream>
int main()
{
    std::stringstream stream;
    int first, second;
    stream << "456"; //插入字符串
    stream >> first; //转换成int
    std::cout << first << std::endl;
    stream.clear();   //在进行多次转换前，必须清除stream
    stream << true;   //插入bool值
    stream >> second; //提取出int
    std::cout << second << std::endl;
}