页面修改

Edu.WebApi/Controllers/Course/QuestionController.cs

@@ -189,10 +189,19 @@ namespace Edu.WebApi.Controllers.Course
                 }
                 // 定义正则表达式用来匹配 img 标签    
                 string str=@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""']?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*>";
-                string newTitle = "";
+                string newTitle = item.Title;
                 try
                 {
-                    newTitle = Regex.Replace(item.Title, str, "[图片]");
+                    newTitle = Regex.Replace(newTitle, str, "[图片]");
+                }
+                catch
+                {
+                    newTitle = item.Title;
+                }
+                try
+                {
+                    newTitle = Regex.Replace(newTitle, @"<iframe\s*[^>]*>", "[音频", RegexOptions.IgnoreCase);
+                    newTitle = Regex.Replace(newTitle, @"</iframe>", "]", RegexOptions.IgnoreCase);
                 }
                 catch
                 {