release v0.9

components/web_ctrl/web_ctrl.c

@@ -181,6 +181,7 @@ button:active{opacity:.7}
     <button class="btn-go" onclick="apiEach('angle','ag_addr','&angle='+v('ag_angle')+'&vel='+v('ag_vel')+'&acc='+v('ag_acc')+'&raf='+v('ag_raf'))">转到角度</button>
     <button class="btn-stop" onclick="apiEach('stop','ag_addr','')">停止</button>
   </div>
+  <button class="btn-off btn-block" onclick="apiEach('reset_pos','ag_addr','')">当前位置清零</button>
 </div>
 
 <div class="card">