C# 表达式学习积累

 1         /// <summary>
 2         /// 读取html里面的body内容(不包括<body>标签)
 3         /// </summary>
 4         /// <param name="htmlUrl">要读取的html地址</param>
 5         private string ReadHtmlToEditHtml(string htmlUrl)
 6         {
 7             string htmlContent1 = string.Empty;
 8             using (StreamReader reader = new StreamReader(htmlUrl))
 9             {
10                 htmlContent1 += reader.ReadToEnd();
11             }
12             Regex reg = new Regex("(?is)<body[^>]*>(?<body>.*?)</body>");
13             string bodyHtml = "";
14             bodyHtml = reg.Match(htmlContent1).Groups["body"].Value;
15             return bodyHtml;
16         }