string::getline

(1)	istream& getline (istream& is, string& str, char delim); istream& getline (istream&& is, string& str, char delim);
(2)	istream& getline (istream& is, string& str); istream& getline (istream&& is, string& str);

#include <iostream>
#include <string>

using namespace std;

int main()
{
string s1;
cout << "enter name:";//jiwawa
getline(std::cin, s1, 'a');//直到字符‘a’结束
cout << "s1:" << s1 << endl;//jiw
return 0;
}