9月 152020
 
#字符串的方法method
phone_number = '138-1234-5678'
hiding_number = phone_number.replace(phone_number[4:8], '*' * 4)
#第3-7个字符,不含第7个字符,即1234,替换为*,连续4个
print(hiding_number)
PS C:\Users\harveymei> & C:/Users/harveymei/AppData/Local/Programs/Python/Python38/python.exe c:/Users/harveymei/hello.py
138-****-5678
PS C:\Users\harveymei>

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