为何输入姓名后要按两下回车才有结果？

Question

#include <iostream>

#include <string>

#include <stdlib.h>

using namespace std;

int main()

{

string name;

cout<<"请输入姓名:";

getline(cin,name);

if(name.empty())

{

cout<<"输入为空"<<endl;

system("pause");

return 0;

}

if(name == "imooc")

{

cout<<"you are a administrator"<<endl;

}

cout<<"hello "+ name<<endl;

cout<<"名字首字母是："<<name[0]<<endl;

cout<<"名字的长度是："<<name.size()<<endl;

system("pause");

return 0;

}

为何结果后面“请按任意键继续”回车后又会有“press any key to continue ”

Answer 1

你不是调用了system("pause")吗？这句话就是这个作业。