1228|字符串

replace 的用法

replace(被替代的字符串,替代部分)

>>> hiding_number = phone_number.replace(phone_number[:9],'*'*9)
>>> print (hiding_number)
*********0006

format的用法
{} 里面可以有变量名,数组编号,或者直接按顺序。

>>> print ('{} a word she can get what she {} for.'.format('With','came'))
With a word she can get what she came for.

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