如何动态绑定 v-model

<van-field
          clearable
          v-model="model[item.name]"
          v-for="(item, index) in fields"
          :key="index"
        />
<script>
data(){
	return {
		model: {
        phone: "",
        password: "",
      },
	 fields: [
		{
			name: 'phone'
		},
		{
			name: 'password'
		},
	]
	}
}
</script>