问v-text-field在键入后返回字符串，即使它的类型为number

EN

<v-text-field type="number" v-model.number="computedAddOnStartingPrice" />

computed: {
  computedAddOnStartingPrice: {
    get () { return this.addOnStartingPrice },
    set (newVal) { this.$emit('update:addOnStartingPrice', newVal) }
  }
}

    <v-text-field
      type="number"   
      step="any"
      min="0"
      :rules="[numberRule]"
      v-model.number="computedAddOnStartingPrice"
    ></v-text-field>

  data: () => ({
    //...
    numberRule: val => {
      if(val < 0) return 'Please enter a positive number'
      return true
    }
  })

<VTextField
  :value="addOnStartingPrice"
  solo
  outline
  reverse
  append-icon="attach_money"
  type="number"
  min="0"
  step="any"
  @input="$emit('update:addOnStartingPrice', Number($event))"
  />

import * as comps from "vuetify/es5/components";

...

const override = comps.VTextField.extend({
  onInput(e) {
    const target = e.target;
    if (this.type !== "number") this.internalValue = target.value;
    else {
      this.internalValue = target.valueAsNumber;
    }
    this.badInput = target.validity && target.validity.badInput;
  }
});
Vue.component('NewVTextField, override);