※ 引述《FAVORITGREEN (壞人嗎>"<)》之銘言：
: 比較過前置++y 與後置y++的差異，
: 但遇到以下2個比較複雜的情況，算出來答案不一樣，
: 能否請教各位高手，說明一下指定及計算的流程?
: x=5 , y=10
: 1. z = x-- + ++y = ? 答案是16 --->但我卻算是15
That's because they are increament/ decreament operators
with postfix or prefix style. They differ in what to be evaluated.
For instance, ++y apply with operator first; so the value
becomes 11. But x-- evaluates the original value, i.e. 5. Thus, 5 + 11 = 16.
Reference:
http://java.sun.com/docs/books/tutorial/java/nutsandbolts/op1.html
: 2. z = ++x - y-- = ? 答案是-6 --->但我卻算是-3
: 不知道錯誤在哪?
: 請各位教我一下!^^ 感恩~
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