87.md

@author jackzhenguo
@desc 
@date 2019/5/7

87 join 串联字符串

用逗号连接字符串

In [4]: mystr = ['1','2','java','4','python','java','7','8','java','python','11','java','13','14']

In [5]: ','.join(mystr) #用逗号连接字符串
Out[5]: '1,2,java,4,python,java,7,8,java,python,11,java,13,14'

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