在Vue父进程和子进程之间传递事件

<template>
  <div>
    <child-component @custom-event="handleEvent"></child-component>
  </div>
</template>

<script>
import ChildComponent from './ChildComponent.vue';

export default {
  components: {
    ChildComponent
  },
  methods: {
    handleEvent(data) {
      // 处理子组件触发的事件
      console.log(data);
    }
  }
}
</script>

<template>
  <div>
    <button @click="triggerEvent">触发事件</button>
  </div>
</template>

<script>
export default {
  methods: {
    triggerEvent() {
      // 触发自定义事件，并传递数据
      this.$emit('custom-event', 'Hello from child component');
    }
  }
}
</script>