Python，打印分隔列表 [英] Python, print delimited list

问题描述

考虑这个用于打印逗号分隔值列表的 Python 代码

Consider this Python code for printing a list of comma separated values

for element in list:
    print element + ",",

如果element 是列表中的最后一个元素，那么打印时不出现逗号的首选方法是什么.

What is the preferred method for printing such that a comma does not appear if element is the final element in the list.

前

a = [1, 2, 3]
for element in a
  print str(element) +",",

output
1,2,3,
desired
1,2,3

推荐答案

>>> ','.join(map(str,a))
'1,2,3'

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