题解 | #截取字符串#再简单的问题,我都会认证对待
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream>
#include <string>
using namespace std;
int main(){
string str;
getline(cin,str);
int k;
cin >> k;
cout << str.substr(0,k) << endl;
return 0;
}
