Java

public class Demo1 {
    public static void main(String[] args) {

        int max = max(10, 20);
        System.out.println(max);
    }

    //比大小
    public static int max(int num1, int num2){
        int result = 0;
        if (num1 == num2){
            System.out.println("num1 == num2");
            return 0;  //终止方法
        }

        if (num1 > num2){
            result = num1;
        }
        else {
            result = num2;
        }
        return result;
    }
}