表单验证validator

//undefined 的时候不会触发表单验证 ''的时候会触发
 code_pre_next_info: [{
      required: true,
      validator: (rule: any, value:any, callback: Function) => {
        const message = '输入礼包数量需要大于0'
        const message2 = '必填'
        const validValue = value.filter((item:any) => !!item.pre && !!item.num)
        return callback(validValue.length === value.length && this.formData.code_pre_next_info_label === '1' ? (value.every((item:any) => { return item.num > 0 }) ? undefined : message) : message2)
      }
    }]