题解 | #截取字符串#，记录一下做了这么久，终于遇到一道简单的了，哈哈
截取字符串
http://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while (in.hasNext()) {
String s = in.next();
int i = in.nextInt();
System.out.println(s.substring(0, i));
}
}
}