聊天中，输入内容后，点击上方默认消息，会清空输入框修复

src/page/Meeting/index.tsx

@@ -2163,7 +2163,6 @@ const Meeting: React.FC = () => {
           chatListIten: item,
         }
       })
-      setTextMsg('');
       chatScrollBotton()
     } else {
       message.error('请输入内容！')
@@ -3162,7 +3161,10 @@ const Meeting: React.FC = () => {
                           <Input.TextArea placeholder="请输入消息" value={textMsg} style={{ flexGrow: 1 }} onChange={(e) => {
                             setTextMsg(e.target.value)
                           }}></Input.TextArea>
-                          <Button type="primary" className='m-ant-btn' style={{ flexShrink: 0, marginTop: '4px' }} onClick={() => sendMsg()}>发送</Button>
+                          <Button type="primary" className='m-ant-btn' style={{ flexShrink: 0, marginTop: '4px' }} onClick={() => {
+                            sendMsg()
+                            setTextMsg('');
+                          }}>发送</Button>
                         </div>
                       </div>
                       :