如何一起或一次使用多个替换，Python
如何一起或一次使用多个替换，Python
提问于 2018-06-12 07:52:30
我有一些文本不清楚，有这么多的标签和ascii如下，
val =
"\nRated\xa0\n I have been to this place for dinner tonight.
\nWell I didn't found anything extraordinary there but indeed a meal worth
the price. The number of barbeque item and other both were good.\n\nFood: 3.5/5\"为了说明我使用的这个标记
val.text.replace('\t', '').replace('\n', '').encode('ascii','ignore').
decode("utf-8").replace('Rated','').replace(' ','')使用多次替换，我得到了我的o/p -
I have been to this place for dinner tonight. Well I didn't found anything extraordinary there but indeed a meal worth the price. The number of barbeque item and other both were good. Food: 3.5/5我想知道有没有什么方法，这样我就可以一次只使用替换来进行类似的替换。就像这个案例-
replace('\t', '').replace('\n', '').replace(' ','')回答 2
Stack Overflow用户
回答已采纳
发布于 2018-06-12 08:06:07
您可以使用.translate删除\n\t，然后使用您的替换空间运行：
>>> val.translate(None,'\n\t').replace(' ','')
"Rated I have been to this place for dinner tonight.Well I didn't found anything extraordinary there but indeed a meal worth the price. The number of barbeque item and other both were good.Food: 3.5/5"replace(' ','')在运行偶数个空格时会出现问题(它们将被删除)。您可以考虑使用正则表达式：
>>> re.sub(r'(\b *\b)',' ',val.translate(None,'\n\t'))
"Rated I have been to this place for dinner tonight.Well I didn't found anything extraordinary there but indeed a meal worth the price. The number of barbeque item and other both were good.Food: 3.5/5"Stack Overflow用户
发布于 2018-06-12 08:03:48
即使我没有使用replace，但我仍然认为这是最好的方式：
import string
val = """\nRated\xa0\n I have been to this place for dinner tonight.
\nWell I didn't found anything extraordinary there but indeed a meal worth
the price. The number of barbeque item and other both were good.\n\nFood: 3.5/5\"""
"""
print(''.join([i for i in ' '.join(val.split()) if i in string.ascii_letters+' ']))输出：
Rated I have been to this place for dinner tonight Well I didnt found anything extraordinary there but indeed a meal worth the price The number of barbeque item and other both were good Food 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50807518
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