浅谈ElementUI中switch回调函数change的参数问题

<el-switch
 v-model="value1"
 @change='changeStatus'>
</el-switch>

<script>
 var vm = new Vue({
 el: "#app",
 data: {
  value1: true
 },
 methods: {
  change: function(callback){
  console.log(callback);
  }
 }
 })
</script>

<el-switch
 v-model="value1"
 @change='changeStatus($event,1)'>
</el-switch>
<el-switch
 v-model="value2"
 @change='changeStatus($event,2)'>
</el-switch>

<script>
 var vm = new Vue({
 el: "#app",
 data: {
  value1: true,
  value2: false
 },
 methods: {
  change: function($event,num){
  console.log($event);
  console.log(num);
  }
 }
 })
</script>