2024年5月2日发(作者：)

输入英文和空格的正则表达式

### English Response:

English & Whitespace Regular Expression.

The following regular expression matches English

letters (a-z and A-Z) and whitespace characters:

[a-zA-Zs]

This regex can be used to perform various text

processing tasks, such as:

Filtering out non-English characters and whitespace:

To remove all non-English characters and whitespace from a

string, you can use the following regex:

[^ws]

Extracting English words from a string: To extract all

English words from a string, you can use the following

regex:

[a-zA-Z]+。

Splitting a string into English words: To split a

string into an array of English words, you can use the

following regex:

[a-zA-Z]+(s+[a-zA-Z]+)。

Example Usage.

Here are some examples of how the English & Whitespace

regular expression can be used:

# Remove all non-English characters and whitespace from

a string.

input_string = "Hello, world! こんにちは世界"

result = input_(/[^a-zA-Zs]/, "")。