vue通過ref獲取dom節點

HTML在任意節點上添加屬性“ref”

<span ref="span_01">span_01</span>
<button @click="consoleDOM()">consoleDOM</button>

SCRIPT vue里通過 this.$refs.xxx 獲取

consoleDOM() {
  window.console.log(this.$refs.span_01)
}