fix(17806)：功能缺陷-【uat】意见反馈-描述您的问题-上传图片后，点击叉叉按钮，没有反应，预期删除图片，并显示加号上传按钮，看图

@@ -294,7 +294,7 @@ export struct FeedBackActivity {
             mediaFlag = true;
             Logger.info(TAG, `select image/video uri: ${value}`);
           })
-          if(this.pics.length<=3 && beforeLen != 3){
+          if(this.pics.length<=3 && beforeLen != 3 && array.length != 3){
             this.addPic.id = startIndex
             this.pics[this.pics.length-1]=this.addPic;
           }