mui-segmented-control-negative

改变颜色，增加.mui-segmented-control-negative,.mui-segmented-control-positive,.mui-segmented-control-primary类即可

<div class="mui-segmented-control mui-segmented-control-inverted mui-segmented-control-primary ">
       <a class="mui-control-item mui-active" href="#item1">待办</a>  
       <a class="mui-control-item" href="#item2">已办</a>
       <a class="mui-control-item" href="#item3">完成</a>
</div>