關於正則表達式的/和//格式問題 JS

（1）由於項目需要，後臺也已經設置了密碼測試的正則表達式，所以直接拿後臺的正則表達式如下： ^(?:(?=.*\\d)(?=.*[A-Z])(?=.*[a-z])|(?=.*\\d)(?=.*[^A-Za-z0-9])(?=.*[a-z])|(?=.*[^A-Za-z0-9])(?=.*[A-Z])(?=.*[a-z])|(?=.*\\d)(?=.*[A-Z])(?=.*[^A-Za-z0-9])

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