Java加等于或等于加运算符?
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Java plus equals or equals plus operator?
提问by 117
Is +=
the same as =+
?
是+=
一样的=+
吗?
I can't find any reason for why the plus sign is reversible. For what reasons would I need to use one of the other? Where can i find docs on this i tried searching but didnt see the use of both.
我找不到加号可逆的任何原因。出于什么原因,我需要使用另一种?我在哪里可以找到这方面的文档我尝试搜索但没有看到两者的使用。
采纳答案by Eran
It's not the same.
这是不一样的。
x+=5
is equivalent to x=x+5
.
x+=5
相当于x=x+5
。
x=+5
(or x=(+5)
) is equivalent to x=5
.
x=+5
(或x=(+5)
) 等价于x=5
。