解决一进页面就会触发trigger: “change“表单校验问题

使用钩子函数，在创建页面时，重置对应属性的值，代码如下：

 created() {
    let _self = this;
    _self.$nextTick(() => {
      _self.$set(_self.datalist, 'belongIndustry', [])
    })
     _self.$nextTick(() => {
      _self.$set(_self.datalist, 'employmentForm', '')
    })
  },

 employmentForm: [
          { required: true, message: "请输入用工形式", trigger: "change" }
  ],
 belongIndustry: [
          { required: true, message: "请选择所属行业", trigger: "change" }
  ],

//data中
 belongIndustry: [],   //多选
 employmentForm: '',   //单选

补充：

     //初始化的时候重置表单，清空效验规则
      this.$nextTick(() => {
        this.$refs["el-form标签上ref的值"].resetFields();
      })