匹配中文: [\u4e00-\u9fa5]* 匹配邮箱: [\w-\.]+@(?:[A-Za-z0-9-]+\.)+[a-z]+ 匹配name=value: (?:[^=\s]+=[^=\s]+)*[^=\s]+=[^=\s]+ 匹配以,间隔的字符: ^[^,]+(?:\b,[^,]+\b)*$ 匹配网址(URL): ((http|https|ftp)://......