form表單內部變化watch監聽

  watch: {
    form: {
      deep: true,
      handler(newval) {
        this.tzinfo = false
      }
    }
  },

//具體到表單內某個值

  watch: {
    'form.sfyj': {
      deep: true,
      handler(newval) {
        this.tzinfo = false
      }
    }
  },