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Python中a += b 并不一定等价于a = a + b
source link: https://juejin.im/post/5c504bace51d450d064623f0
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大家经常在一些博客中看到这样的说法： a += 1 复制代码等价于 a = a + 1 复制代码这种说法实际上并不准确。 我们来看一个例子： >>> a = [1, 2, 3] >>> a += (4,) >>&
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