C/C++_字符串分割strtok函数

#include <string>
#include <iostream>
using namespace std;
int main()
{
char str[] ="efsa efsb sefsc";
     char *pch;
     pch = strtok (str," ");           
    while (pch != NULL) {
           cout<<pch<<endl;
           pch = strtok (NULL, " ");
     }
    return 0;
}

输出：
efsa

efsb

sefsc