sadia-game/src/main/java/com/jingcheng/template/service/impl/Test.java

package com.jingcheng.template.service.impl;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

public class Test {
    public static void main(String[] args) {
        int a = 1;
        int b = 2;
        int num=a+(int)(Math.random()*(b-a+1));
        System.out.println(num);
    }

    public static String getStringByEnter(int length, String string) {
        for (int i = 1; i <= string.length(); i++) {
            try {
                if (string.substring(0, i).getBytes("GBK").length > length) {
                    return string.substring(0, i - 1) + "\n" +
                            getStringByEnter(length, string.substring(i - 1));
                }
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
        return string;
    }
}