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Closed 19 hours ago.

我需要在网页上展示html的代码:

$ cat text.txt
<p><strong>Task:</strong><br>This is test text!</p>

$ cat output.txt but the answer is in the file output.txt He showed it to me like this:

&lt;p&gt;<p><strong>&lt;strong&gt;Task:&lt;/strong&gt;</strong><br>This is test text!</p>&lt;br&gt;&lt;/p&gt;

如你所知,他出于某种原因重复不必要的标签:

<p><strong>, </strong><br>, </p>

我在守则中写出了什么错误?

我的方案守则如下:

$ cat main.py
#tag - теги html
#file - переменная файла
#fileread - считывание файла
#replacetags - замена тегов
#addtags - добавление тега p в файле
#tags=["<p>","</p>","<br>","&nbsp;&nbsp;&nbsp;"]
tags=["&lt;p&gt;","&lt;/p&gt;","&lt;br&gt;","&nbsp;&nbsp;&nbsp;","&lt;strong&gt;Task:&lt;/strong &gt;"]
#print(tags[2])
with open("text.txt") as file:
    fileread = file.read()
    #print(fileread)
replacetags = fileread.replace("    ", tags[3]).replace("
", tags[2]).replace("Task:", tags[4])
#print(replacetags)
#print(tags[0], replacetags, tags[1])
addtags = tags[0]+replacetags+tags[1]
#print(addtags)
with open("output.txt", "w") as file:
    file.write(addtags+"
")

这是我应当得到的答案,实际上:

&lt;p&gt;&lt;strong&gt;Task:&lt;/strong&gt;&lt;br&gt;This is test text!&lt;/p&gt;

Answer 1

问题似乎在于你在更换其代码中的超文本标签。问题在于你如何用超文本实体取代标签。具体来说,你正在用相应的超文本实体取代实际的超文本标签,造成标签的重复。

页: 1

with open("text.txt") as file:
    fileread = file.read()

replacetags = fileread.replace("<p>", "&lt;p&gt;").replace("</p>", "&lt;/p&gt;").replace("<br>", "&lt;br&gt;").replace("Task:", "&lt;strong&gt;Task:&lt;/strong&gt;")
addtags = replacetags

with open("output.txt", "w") as file:
    file.write(addtags+"
")

友情链接