Merge branch 'master' of http://gitlab.oytour.com/Kui2/education

Edu.WebApi/Controllers/Course/QuestionController.cs

@@ -12,6 +12,7 @@ using Microsoft.AspNetCore.Mvc;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.RegularExpressions;
 
 namespace Edu.WebApi.Controllers.Course
 {
@@ -88,11 +89,22 @@ namespace Edu.WebApi.Controllers.Course
                 {
                     item.UpdateByName = UserReidsCache.GetUserLoginInfo(item.UpdateBy)?.AccountName ?? "";
                 }
+                // 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 = "";
+                try
+                {
+                    newTitle = Regex.Replace(item.Title, str, "[图片]");
+                }
+                catch (Exception ex)
+                {
+                    newTitle = item.Title;
+                }
                 resultList.Add(new
                 {
                     item.QuestionId,
                     item.CourseId,
-                    item.Title,
+                    Title= newTitle,
                     item.QuestionTypeId,
                     item.QuestionTypeKey,
                     item.QuestionTypeName,