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计算时用了"_" 引用了上一步的结果,结果结果出现“错误”

0
C/C++ 608 次浏览

>>> b=-6
>>> abs(b)
6
>>> c=5.26
>>> abs(c)
5.26
>>> b+_
-0.7400000000000002

为什么后面会多出来个2,这个是什么意思?

1个答案

0

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