join 用法

对列表，字符串，元组，字典 进行操作，合并目录

s = 'hello world'

i = '-------'

print(i.join(s) )

s = 'hello world'



print('---------'.join(s) )

s = ('hello','world')
print('---------'.join(s) )

s = {'hello':1,'world':2}
print('---------'.join(s) )