终于做出来了：
three = one + two;
System.out.println(three);
three += one;
System.out.println(three);
three -= one;
System.out.println(three);
three *= one;
System.out.println(three);
three /= one;
System.out.println(three);
three %= one;
System.out.println(three);
public class HelloWorld{ public static void main(String[] args) { System.out.println("我爱慕课网"); System.out.println("www.imooc.com");} }
