Less fun is the fact that merely editing a regular expression could cause a capture to be assigned a new number, invaliding code that refers back to it by the old number.

更不好玩的是，稍微修改一下正则表达式，就可能会导致某个捕获被赋予新的编号，而令以旧编号来引用它的代码失效。

youdao

Less fun is the fact that merely editing a regular expression could cause a capture to be assigned a new number, invaliding code that refers back to it by the old number.

更不好玩的是，稍微修改一下正则表达式，就可能会导致某个捕获被赋予新的编号，而令以旧编号来引用它的代码失效。

youdao