正确

练习：

引用（Refs）用于引用特定的DOM元素。

补充缺失的代码，使得应用程序挂载时，“Hello World”被显示在第二个 <p> 标签中。

<template> <p>This is just some text.</p> <p ref="pEl">This is the initial text</p> </template> <script> export default { mounted() { this.$refs.pEl.innerHTML = "Hello World!"; } }; </script>

<template> <p>This is just some text.</p> <p ref='pEl'>This is the initial text</p> </template> <script> export default { mounted() { this.$refs.pEl.innerHTML = "Hello World!"; } }; </script>

不正确

点击此处重试

正确

下一题 ❯

<template>
  <p>This is just some text.</p>
  <p w3exercise_input_no_0
>This is the initial text</p>
</template>

<script>
  export default {
    mounted() {
      this.w3exercise_input_no_1
.pEl.innerHTML = "Hello World!";
    }
  };
</script>