var a = 5; var b =12;
?如何实现a和b的值互换?
a = b-a;
b = b -a;
a = a +b;
要习惯打破常规,思想的魅力无限啊。
posted on 2017-01-09 16:47 未来-竭尽全力 阅读(80) 评论(0) 编辑 收藏 举报
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