如何垫串0python

代码示例

15
0

蟒蛇把数字符串零领先

str(1).zfill(2)
# 1 will be '01'

str(23).zfill(4)
# 23 will be '0023'
0
0

unpad零从串蟒蛇

my_str='0001'
my_str.lstrip('0')

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