SOURCE

new Vue({
  el: "#app",
  data: {
    loading: false,
    options:[{
      value: "1",
      label: "好用",
      disabled: true
    },
    {
      value: "2",
      label: "方便",
      disabled: false
    },
    {
      value: "3",
      label: "实用",
      disabled: false
    },
    {
      value: "4",
      label: "有效",
      disabled: false
    }],
	},
  computed:{
    rule(){
      return [ {
            type: "Select",
            title: "自动完成",
            field: "auto2",
            props: {
                filterable: true,
                remote: true,
                remoteMethod: this.remoteMethod,
                loading: this.loading
            },
        		options:this.options
        }]
    }
  },
  methods:{
    remoteMethod(query) {
            if (query !== "") {
                this.loading = true;
                setTimeout(() => {
                    this.loading = false;
                  	this.options = [{
                      value: "1",
                      label: "好用",
                      disabled: true
                    },
                    {
                      value: "2",
                      label: "方便",
                      disabled: false
                    }]
                }, 200);
            } else {
                this.options = [];
            }
        },
  }
})

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.min.js">
</script>
<script src="https://cdn.jsdelivr.net/npm/iview/dist/iview.min.js">
</script>
<script src="https://cdn.jsdelivr.net/npm/form-create@1.5.0/dist/form-create.min.js">
</script>
<div id="app">
  <form-create :rule="rule" />
</div>

@import url("//cdn.jsdelivr.net/npm/iview/dist/styles/iview.css");
#app {
  padding: 32px;
}