python中sep是什么意思

关键字参数sep是实现分隔符，比如多个参数输出时想要输出中间的分隔字符

print(1, 2, 3, sep = ',', end = '\r\n')
print(1, 2, 3, sep = ' ', end = '\r\n')

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结果输出如下：

1,2,3
1 2 3

print("file\n","abc","bcd","fff\n","poi")
print("-------------")
print("file\n","abc","bcd","fff\n","poi",sep='')
print("-------------")
print("file\n","abc","bcd","fff\n","poi",sep=' ')
print("-------------")

其结果为：

file
 abc bcd fff
poi-------------file
abcbcdfff
poi-------------file
 abc bcd fff
poi-------------

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