<div class="sex" v-show="showed" transition='fade' @click="unshow">
 <ul @click.stop="stophidden">
 <li class="choice">選擇</li>
 <li>
 <label>男</label>
 <input type="radio" name="sex" value="男">
 </li>
 <li>
 <label>女</label>
 <input type="radio" name="sex" value="女">
 </li>
 </ul>
 </div>

<ul @click.stop="stophidden">

 <ul @click.stop="">

<div class="collect" @click="checktanchuceng">
 <button @click="unshow">toggle</button>
 <div class="tachuceng" v-show="showed">

 </div>
</div>
<script>
export default {
 data (){
 return {
 showed:false
 }
 },
 methods:{
 checktanchuceng (){
 if(this.showed=true){
 this.showed=false;
 }
 },
 unshow(){
 this.showed=!this.showed
 }
 }
}
</script>

<button @click.stop="unshow">toggle</button>