python - 将文本区域输入转换为分段 HTML

Question

我想将用户在 html 页面上的文本区域中输入的内容转换为 <p> -标记输出，其中每个 <p>正在更换新线路。

我正在尝试使用正则表达式，但我无法让它工作。有人会纠正我的表情吗？

String = "Hey, this is paragraph 1 \n and this is paragraph 2 \n and this will be paragraph 3"
Regex = r'(.+?)$'

它只会导致 Hey, this is paragraph 1 \n and this is paragraph 2 \n<p>and this will be paragraph 3</p>

Answer 1

我不会为此使用正则表达式，只是因为您不需要它。检查一下:

text = "Hey, this is paragraph 1 \n and this is paragraph 2 \n and this will be paragraph 3"
html = ''
for line in text.split('\n'):
   html += '<p>' + line + '</p>'

print html

让它成为一行，因为越短越好，也越清晰:

html = ''.join('<p>'+L+'</p>' for L in text.split('\n'))