int one = 10 ; int two = 20 ; int three = 0 ; three=one+two; System.out.println("three=one+two==>"+three); three+=one; System.out.println("three+=one==>"+three); three-=one; System.out.println("three-=one==>"+three); three*=one; System.out.println("three*=one==>"+three); //"为啥我都看不懂？"; } }
2018-07-23
//定义整型one,two,three,并赋初值
int one = 10 ; int two = 20 ; int three = 0 ;
//计算one+tow(也就是计算10+20），并赋值给three
three=one+two;
//输出three（也就是输出10+20）
System.out.println("three=one+two==>"+three);
//等同于three=three+one;就是将one+three重新赋给three（也就是30+10），并输出three
three+=one; System.out.println("three+=one==>"+three);
//等同于three=three-one;就是将three-one重新赋给three（也就是20-10），并输出three
three-=one; System.out.println("three-=one==>"+three);
//等同于three=three*one;就是将three*one重新赋给three（也就是10*10），并输出three
three*=one; System.out.println("three*=one==>"+three);
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