Comments (4)
请阅读:https://github.com/qiwsir/StarterLearningPython/blob/master/103.md
2015-08-20 23:01 GMT+08:00 wanghaisheng [email protected]:
id(3)
140396202092696
id(3.0)
140396281118032
id(3.00)
140396281118032
id(3.000)
140396281118032
id(3.01)
140396281118032
id(3.001)
140396281118032
id(3.011)
140396281118032为什么 3.01 3.001 3.011会是一样的值呢
python -V
Python 2.7.10—
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#22.
QiWei
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有没有103中那样类似解决除法的模块 来处理id这个问题呢
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id(任意浮点数) 的值都是一样的,我觉得这个语句应该是把浮点数赋值给一个临时变量,然后id(临时变量)。所以id(3.0),id(4.0)等的结果都一样。
比如下面,开始id(3.0)和id(4.0)值都一样,再声明一个浮点数变量ff,ff的id值也是一样。再执行一句id(7.0),id值就变了。前俩句,应该使用了同样的临时变量,声明ff时,把临时变量id给了ff,后面只能再分配一个临时变量了。
id(3.0)
140303047617784
id(3.1)
140303047617784
ff = 6.0
id(ff)
140303047617784
id(7.0)
140303047617808
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有一点明白了 谢谢
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