题解 | 截取字符串
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String gni = in.nextLine();
int k = in.nextInt();
System.out.println(gni.substring(0,k));
}
}
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