题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
赋值字符组之后，直接提取
#计算机网络知识点总结##include <iostream>
#include <string>
using namespace std;
int main(){
string str;
int a;
cin>>str>>a;
cout<<str.substr(0,a)<<endl;
return 0;
}
