就是啊 为什么不加 int
public class HelloWorld{
public static void main(String[] args) {
int one = 10 ;
int two = 20 ;
int three = 0 ;
there=one+two;
System.out.println(there=one+two==>there);
there+=one;
System.out.println(there+=one==>there);
there-=one;
System.out.println(there-=one==>there);
there*=one;
System.out.println(there*=one==>there);
there/=one;
System.out.println(there/=one==>there);
there%=one;
System.out.println(there%=one==>there);
}
}