vue根据data里的值引用不用的文件

import a from "../../../file/a";
import a_1 from "../../../file/a_1";
...
data() {
    return {
        dataObj:{},
        a:a
    }
}
watch: {
    "dataObj.xx": {
      handler(){
        this.a= this.dataObj.xx=='1'?a:a_1
      },
      deep : true,// 开启深度监听
    },
}