你注意一下題目的要求和輸出結(jié)果，題目要求的輸入結(jié)果：

題目的要求是three這個(gè)變量每次都要被重新賦值，并作為下一次的輸入項(xiàng)。但是你這里的three只是作為一個(gè)常量參加運(yùn)算，因此跟題目不符合。

正確的寫(xiě)法應(yīng)該是：

Public?class?HelloWorld{
????public?static?void?main(String[]?args)?{
????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);
????????three?/=?one;
????????System.out.println("three?/=?one?==>?"?+?three);
????????three?%=?one;
????????System.out.println("three?%=?one?==>?"?+?three);
????????
}
}