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; }