Question

C++ 控制台输入

#include <iostream>
#include <string>
using namespace std;

int main(int argc, char* argv[])
{
string str;
cin>>str;
cout<<str<<endl;
return 0;
}

这样做不能保存空格，请问要怎样做才能将空格也存入string类里。

Answer 1

cin默认会略过空格的,可以用getline()

#include <string>
#include <iostream>

using namespace std ;

int main()
{
string s1;
cout << "Enter a sentence (use <换行符> as the delimiter): ";
getline(cin,s1, '\n');
cout << "You entered: " << s1 << endl;;
}