python简单判断序列是否为空的方法

WBOY
Release: 2016-06-06 11:19:10
Original
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本文实例讲述了python简单判断序列是否为空的方法。分享给大家供大家参考。具体如下:

假设有如下序列:

m1 = []
m2 = ()
m3 = {}

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判断他们是否为空的高效方法是:

if m1:
  ......
if not m2:
  ......

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希望本文所述对大家的Python程序设计有所帮助。

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