fix:1）新闻搜索页搜索关键字“扬子晚报”或者“广西公安”必现系统奔溃

@@ -146,13 +146,16 @@ export struct RmhTitle {
                   .height(16)
               }
             }
-            Text(this.rmhInfo?.rmhDesc.replaceAll('\n', ''))
-              .fontSize($r("app.float.font_size_12"))
-              .fontColor($r("app.color.color_B0B0B0"))
-              .maxLines(1)
-              .alignSelf(ItemAlign.Start)
-              .textOverflow({ overflow: TextOverflow.Ellipsis })
-              .textAlign(TextAlign.Start)
+            if(this.rmhInfo?.rmhDesc != undefined){
+              Text(this.rmhInfo?.rmhDesc.replaceAll('\n', ''))
+                .fontSize($r("app.float.font_size_12"))
+                .fontColor($r("app.color.color_B0B0B0"))
+                .maxLines(1)
+                .alignSelf(ItemAlign.Start)
+                .textOverflow({ overflow: TextOverflow.Ellipsis })
+                .textAlign(TextAlign.Start)
+            }
+
           }
           .width('75%')
         }