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newstr = string.zfill(width)
width
新字符串希望的宽度In [14]: name = 'insane'
In [15]: new_name = name.zfill(10)
In [16]: print(new_name)
0000insane
test_str = 'my name is insane'
new_str = test_str.zfill(5)
print(new_str) -> 'my name is insane'
# coding:utf-8
heart = 'love'
if __name__ == '__main__':
print(' t ' + heart)
print('t ' + heart)
print(heart.zfill(10))
print(heart.zfill(9))
print(heart.zfill(8))
print(heart.zfill(6))
print(heart.zfill(4))
t love
t love
000000love
00000love
0000love
00love
love
Process finished with exit code 0
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