bug: fix #5286

src/pages/im/index.js

       console.log('发送成功')
       this.appendData(payload)
     })
+ 
+    this.setState({
+      inputText: '',
+      msgList: list
+    }, this.toBottom)
   }
 
   appendData = (data) => {
         list: [data]
       })
     }
- 
-    this.setState({
-      inputText: '',
-      msgList: list
-    }, this.toBottom)
   }
 
   handleIssueClick = (message, e) => {