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一、列表元素拼接成字符串

phone_num = ['123456','654321','147258']phone = ','.join(phone_num)print(phone)>>>123456,654321,147258phone = str(phone)print(phone)>>>'123456,654321,147258'phone_num = ['123456', '654321', '147258']phone = ''.join(phone_num)print(phone)>>>123456654321147258

二、字符串转化成列表元素

phone_num = '123456,654321,147258'phone = list(phone_num.split(','))print(phone)>>>['123456', '654321', '147258']

三、将一个连续的字符串数字分割开

phone_num = '123456654321147258'phone = ','.join(phone_num)print(phone)>>>1,2,3,4,5,6,6,5,4,3,2,1,1,4,7,2,5,8

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