9.11 学习情况及课堂小测

import java.util.Scanner;
import java.util.Random;
public class Main {
    public static void main(String[] args) {
        Random radom=new Random();
        for(int i=0;i<30;i++) {
            int k= radom.nextInt(100)%100;
            int t=radom.nextInt(100)%100;
            int sf= radom.nextInt(4)%4;
            if (sf == 0) {
                System.out.println(k + "+" + t + "=");
            }
            if (sf == 1) {
                System.out.println(k + "-" + t + "=");
            }
            if (sf == 2) {
                System.out.println(k + "/" + t + "=");
            }
            if (sf == 3) {
                System.out.println(k + "*" + t + "=");
            }
        }
    }
}