Question

是否可以创建一个变量，我可以在其中存储产品列表，而不是使用＆＃34; lines＆＃34;变量。在创建文本文件时

#creating a textfile 

text_file= open("productlist.txt", "w")

lines = ("Bed","\n","Couch","\n","Mirror","\n","Television","\n"
         "Tables","\n","Radio")


text_file.writelines(lines)
text_file.close()

text_file = open("productlist.txt")
print(text_file.read())
text_file.close()

Answer 1

我相信你想要完成的是不写一个换行符＆＃34; \ n＆＃34;每次都在那里，对吧？只需将代码放入循环：

#Create text file
text_file = open("productlist.txt", "w")

#Enter list of products
products = ["Bed", "Couch", "Mirror", "Television", "Tables", "Radio"] #Formerly "lines" variable

#Enter each product on a new line
for product in products:
    text_file.writelines(product)
    text_file.writelines('\n')

#Close text file for writing
text_file.close()

#Open text file for reading
text_file = open("productlist.txt")
print(text_file.read())

#Close text file
text_file.close()

如果您决定要附加到文档而不是每次都覆盖它，只需更改即可 text_file = open（＆＃34; productlist.txt＆＃34;，＆＃34; w＆＃34;）至 text_file = open（＆＃34; productlist.txt＆＃34;，＆＃34; a＆＃34;）

如果文本文档不是列表的最佳格式，您可以考虑exporting to a csv file（您可以在Excel电子表格中打开）

Answer 2

您可以创建包含所有行和换行符的单个字符串，而不是单独使用writelines编写每一行和换行符，并write。

要从项目列表中创建组合字符串，您可以使用join。

products = ["Bed", "Couch", "Mirror", "Television", "Tables", "Radio"]
text_file.write("\n".join(products))

（请注意，(a, b, c)会创建一个元组，而[a, b, c]会创建一个列表。您可能想了解这些差异，但在这种情况下无关紧要。）

用Python创建文本文件

2 个答案: