C++基础笔记（string截取）

#include <iostream>
#include <string>

using namespace std;

int main(int argc, char* argv[])
{
    string name("rockderia");
    string firstname(name.substr(0,4));
    cout << firstname << endl;

    system("pause");
}

　　output：rock

转载于:https://www.cnblogs.com/Never-Land/p/9743574.html