vue中component标签的使用

dom部分

<template>
  <div id="app">
    <component :is="key"></component>
  </div>
</template>

js部分

<script>
var componentA = {
  template: `<div style="color:red">我是A组件</div>`
};
 
var componentB = {
  template: `<div style="color:blank">我是B组件</div>`
};
 
var componentC = {
  template: `<div style="color:pink">我是C组件</div>`
};
export default {
  name: "component",
  data() {
    return {
      key: "comC"
    };
  },
  methods: {
  },
  components: {
    comA: componentA,
    comB: componentB,
    comC: componentC
  }
};
 
</script>

参考---https://blog.csdn.net/weixin_43837268/article/details/87360888?utm_term=component%E5%B1%9E%E6%80%A7vue&utm_medium=distribute.pc_aggpage_search_result.none-task-blog-2~all~sobaiduweb~default-5-87360888&spm=3001.4430