ant-design-vue/components/avatar/demo/dynamic.md

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#### 自动调整字符大小 对于字符型的头像,当字符串较长时,字体大小可以根据头像宽度自动调整。 #### Autoset Font Size For letter type Avatar, when the letters are too long to display, the font size can be automatically adjusted according to the width of the Avatar.
<template>
  <div>
    <a-avatar shape="square" size="large" :style="{'backgroundColor': color}">{{avatarValue}}</a-avatar>
    <a-button @click="changeValue">改变</a-button>
  </div>
</template>
<script>
  const UserList = ['U', 'Lucy', 'Tom', 'Edward']
  const colorList = ['#f56a00', '#7265e6', '#ffbf00', '#00a2ae']
  export default {
    data () {
      return {
        avatarValue: UserList[0],
        color: colorList[0],
      }
    },
    methods: {
      changeValue () {
        const index = UserList.indexOf(this.avatarValue)
        this.avatarValue = index < UserList.length - 1 ? UserList[index + 1] : UserList[0]
        this.color = index < colorList.length - 1 ? colorList[index + 1] : colorList[0]
      },
    },
  }
</script>