哪里有问题呢

 int one = 10 ;

        int two = 20 ;

        int three = 0 ;

        three = one + two ;

        Systeam.out.println("three = one + two ==>"+three);

        three += one ;

        Syeteam.out.println("three += one ==>"+three);

        three -= one ;

        Systeam.out.println("three -= one ==>"+three);

        three *= one ;

        Systeam.out.println("three *= one ==>"+three);

        three /= one ;

        Systeam.out.println("three /= one ==>"+three);

        three %= one ;

        Systeam.out.println("three %= one ==>"+three);