从Python3的unicode文本文件中删除一个unicode范围

Question

我有一个由范围q到r和s到t组成的Unicode文本文件。我想删除范围s到t（这是中文），留下q到r（这是英文）。

我如何在Python3中做到这一点？

Answer 1

使用字符串翻译方法。引用3.1.3 Std Lib文档：

str.translate(map) 
Return a copy of the s where all characters have been mapped through the map 
which must be a dictionary of Unicode ordinals (integers) to Unicode ordinals, 
strings or None. Unmapped characters are left untouched. Characters mapped to 
None are deleted. 

You can use str.maketrans() to create a translation map from 
character-to-character mappings in different formats.