Vue+tsx使用slot没有被替换的问题

import Component from 'vue-class-component'
import VanUIComponent from '@packs/common/VanUIComponent'
import { VNode } from 'vue'
import { Prop } from 'vue-property-decorator'
import { CardShadowEnum } from '@packs/config/card'

@Component
export default class Card extends VanUIComponent {
  @Prop({
    type: String,
    default: undefined
  }) public headerPadding !: string | undefined

  @Prop({
    type: String,
    default: ''
  }) public title !: string

  @Prop({
    type: String,
    default: CardShadowEnum.Hover
  }) public shadow !: CardShadowEnum

  public static componentName = 'v-card'

  public get wrapperClassName(): string {
    const list: string[] = ['v-card__wrapper']

    list.push(`shadow-${ this.shadow }`)

    return list.join(' ')
  }

  public render(): VNode {
    return (
      <div class={ this.wrapperClassName }>
        <div class="v-card__header" style={ { padding: this.headerPadding } }>
          {
            this.$slots.title ? <slot name="title" /> : <div>{ this.title }</div>
          }
        </div>
        <div class="v-card__body">
          <slot name="default" />
        </div>
        <div class="v-card__footer"></div>
      </div>
    )
  }
}

<template>
  <v-card>
    <template #title>1111</template>
  </v-card>
</template>

<script lang="ts">
import Vue from 'vue'
import Component from 'vue-class-component'

@Component
export default class Components extends Vue {

}
</script>

<style lang="scss" scoped>
.components__wrapper {
  padding: 20px;
}
</style>

...
  public render(): VNode {
    return (
      <div class={ this.wrapperClassName }>
        <div class="v-card__header" style={ { padding: this.headerPadding } }>
          {
            this.$slots.title ?? <div>{ this.title }</div>
          }
        </div>
        <div class="v-card__body">
          <slot name="default" />
        </div>
        <div class="v-card__footer"></div>
      </div>
    )
  }
...