java中的substring() 方法来截取字符串

表示从第几个字符开始，一直到最后
测试如下:

package bailaoVJ;
import java.util.Scanner;

public class code16 {
    public static void main(String[] args) {
//        Scanner sc = new Scanner(System.in);
        String s = "wrgnnsvnsvnsvbsvnsvsvsvs";
        //从第五个字符开始
        String substring = s.substring(5);
        System.out.println(substring);
    }
}

表示从一个范围，从开始到结束
测试如下:

package bailaoVJ;

public class code16 {
    public static void main(String[] args) {
//        Scanner sc = new Scanner(System.in);
        String s = "wrgnnsvnsvnsvbsvnsvsvsvs";
        //从第五个字符开始
        String substring = s.substring(5);
        String substring1 = s.substring(1, 5);
        System.out.println(substring1);
    }
}