舉個例子:
替換前正則表達式
Access-Control-Allow-Credentials: true Access-Control-Allow-Origin: https://movie.douban.com Cache-Control: must-revalidate, no-cache, private Connection: keep-alive Content-Encoding: br Content-Type: application/json; charset=utf-8 Date: Tue, 08 Dec 2020 08:12:04 GMT Expires: Sun, 1 Jan 2006 01:00:00 GMT Keep-Alive: timeout=30 Pragma: no-cache Server: dae Set-Cookie: bid=QfmDsWrTsvE; Expires=Wed, 08-Dec-21 08:12:04 GMT; Domain=.douban.com; Path=/ Strict-Transport-Security: max-age=15552000 Transfer-Encoding: chunked X-Content-Type-Options: nosniff X-DAE-App: talion X-DAE-Instance: default X-Douban-Mobileapp: 0 X-DOUBAN-NEWBID: QfmDsWrTsvE X-Xss-Protection: 1; mode=block
上面那麼多鍵值對從chrome的response headerds複製過來時沒有引號,結尾處沒有逗號
若是一個一個的加上引號和逗號會比較麻煩,浪費時間,這樣的狀況下能夠編寫個正則表達式進行匹配替換chrome
使用了正則表達式(.*?): (.*)
匹配了不帶引號的鍵值對,而'$1': '$2',
則表示替換成冒號先後要加引號而且結尾處加上逗號的形式,選擇所有替換,一次性替換成須要的鍵值對形式,很是方便express
下面是vscode針對正則表達式的官方連接:
https://docs.microsoft.com/en...json