The other approach to matching "bat," "bat," "cat," or "cat" USES the (brackets) set operator.

匹配“bat”、“bat”、“cat”或“cat”的另一个方法是使用(方括号)集合操作符。

youdao

The other approach to matching "bat," "bat," "cat," or "cat" USES the (brackets) set operator.

匹配“bat”、“bat”、“cat”或“cat”的另一个方法是使用(方括号)集合操作符。

youdao