转：C# 正则表达式提取指定文本内的内容

C# 正则表达式提取指定文本内的内容_c#正则表达式提取文本-CSDN博客

C#正则提取字符串（一个或多个）_c#正则表达式提取字符串-CSDN博客

 

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/// <summary>         /// 截取字符串中开始和结束字符串中间的字符串         /// </summary>         /// <param name="source">源字符串</param>         /// <param name="startStr">开始字符串</param>         /// <param name="endStr">结束字符串</param>         /// <returns>中间字符串</returns>         public string SubstringSingle(string source, string startStr, string endStr)         {             Regex rg = new Regex("(?<=(" + startStr + "))[.\\s\\S]*?(?=(" + endStr + "))", RegexOptions.Multiline | RegexOptions.Singleline);             return rg.Match(source).Value;         }            /// <summary>         /// （批量）截取字符串中开始和结束字符串中间的字符串         /// </summary>         /// <param name="source">源字符串</param>         /// <param name="startStr">开始字符串</param>         /// <param name="endStr">结束字符串</param>         /// <returns>中间字符串</returns>         public List<string> SubstringMultiple(string source, string startStr, string endStr)         {             Regex rg = new Regex("(?<=(" + startStr + "))[.\\s\\S]*?(?=(" + endStr + "))", RegexOptions.Multiline | RegexOptions.Singleline);                           MatchCollection matches = rg.Matches(source);                List<string> resList=new List<string>();                foreach (Match item in matches)                 resList.Add(item.Value);                return resList;         }

 

以上可以从html中代码中提取一些数据，如从table中取表数据等。