/// <summary>

 /// 删除一个Prefab上的空脚本

 /// </summary>

 /// <param name="path">prefab路径 例Assets/Resources/FriendInfo.prefab</param>

 private void DeleteNullScript(string path)

 {

     bool isNull = false;

     string s = File.ReadAllText(path);  

     Regex regBlock = new Regex("MonoBehaviour");  

     // 以"---"划分组件

     string[] strArray = s.Split(new string[] { "---" }, StringSplitOptions.RemoveEmptyEntries);  

     for (int i = ; i < strArray.Length; i++)

     {

         string blockStr = strArray[i];  

         if (regBlock.IsMatch(blockStr))

         {

             // 模块是 MonoBehavior

             Match guidMatch = Regex.Match(blockStr, "m_Script: {fileID: (.*), guid: (?<GuidValue>.*?), type:");

             if (guidMatch.Success)

             {

                 // 获取 MonoBehavior的guid

                 string guid = guidMatch.Groups["GuidValue"].Value;

                 //Debug.Log("Guid:" + guid);  

                 if (string.IsNullOrEmpty(GetScriptPath(guid)))

                 {

                     // 工程中无此脚本 空脚本！！！

                     //Debug.Log("空脚本");

                     isNull = true;  

                     // 删除操作  

                     // 删除MonoScript

                     s = s.Replace("---" + blockStr, "");  

                     Match idMatch = Regex.Match(blockStr, "!u!(.*) &(?<idValue>.*?)\r");

                     if (idMatch.Success)

                     {

                         // 获取 MonoBehavior的guid

                         string id = idMatch.Groups["idValue"].Value;  

                         // 删除MonoScript的引用

                         Regex quote = new Regex("  - (.*): {fileID: " + id + "}");

                         s = quote.Replace(s, "");

                     }  

                 }  

             }  

         }  

     }  

     if (isNull)

     {

         // 有空脚本 写回prefab

         File.WriteAllText(path, s);  

         // 打印Log

         Debug.Log(path);

     }

 }