什么都沒有保存的空值python語句
提問人:楊紫紅發(fā)布時間:2020-11-18
>>> myval = None
>>> if myval == None:
print("The variable myval doesn't have a value")
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相關(guān)視頻回答
>>> myval = None
>>> if myval == None:
print("The variable myval doesn't have a value")
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