Java中的賦值運算符
自己做了一遍運行錯誤，于是放到Eclipse上運行發現是int there = one + two; there前沒引用類型，有兩點不能理解的是減等于和除等于和模等于的規律。。求解
public class HelloWorld{
? ? public static void main(String[] args) {
int one = 10 ;
? ? ? ? int two = 20 ;
? ? ? ? int three = 0 ;
? ? ? ? int 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);
2018-01-31
int three = one + two ;
把前面那個int去掉，已經定義過three類型了，不用重新定義了
2018-01-25
運行好像沒問題啊，代碼應該也沒問題，除了three這個變量沒用到，估計是打錯了吧，不過第二個變量there也定義了，所以沒問題。
three -= one;????等價于????three = three - one;
其他的也一樣