​若有 a=3, 则执行下列语句a+=a*=a，a的值为？

Question

a*=a后a的值为9，那最后的结果应该是18 为什么会是12呢

Answer 1

我之前回答过这个问题，请参考：https://www.imooc.com/wenda/detail/387946

Answer 2

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

Answer 3

a=a+a*a