展开嵌套的字符串列表并另存为.txt

Question

我有一个包含字符串元素的列表：

[['110,67,169,86,5'], ['421,404,323,187,5'], ['865,98,452,53,2']]  

我想在一行中写入.txt文件：

110,67,169,86,5 421,404,323,187,5 865,98,452,53,2

感谢您对此的任何帮助！

Answer 1

展开您的值并将它们连接成一个字符串

x = [['110,67,169,86,5'], ['421,404,323,187,5'], ['865,98,452,53,2']]
joined = ' '.join(sum(x, []))
# -> '110,67,169,86,5 421,404,323,187,5 865,98,452,53,2'

将结果保存到文件

file = open('unrolled.txt', 'w')
file.write(joined)
file.close()

Answer 2

如果输入正确：

>>> a = [['110,67,169,86,5'], ['421,404,323,187,5'], ['865,98,452,53,2']]
>>> " ".join([x[0] for x in a])
'110,67,169,86,5 421,404,323,187,5 865,98,452,53,2'