题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream>
#include <string>
using namespace std;
string cutString(string str, size_t length){
return str.substr(0,length);
}
int main() {
string str;
size_t length;
cin >> str;
cin >> length;
cout << cutString(str,length) << endl;
}
// 64 位输出请用 printf("%lld")
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