python常见编码错误集合
python3.6编码错误unable to load the file system codec

zfill自动补0

妙音 posted @ 2018年5月19日 17:14 in python , 973 阅读
python提供了zfill(zero fill)函数自动为字符串前面补0
>>> "5".zfill(2)  #2表示字符串宽度
'05'
 
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