<template>
  <img alt="Vue logo" src="./assets/logo.png">
  <HelloWorld msg="Welcome to Your Vue.js App"/>  
  <button @click="handleClick">点击我</button>
  <p>{{ message }}</p> <!-- 显示 message 的内容 -->
</template>

<script>
import HelloWorld from './components/HelloWorld.vue';
import { ref } from 'vue';

export default {
  name: 'App',
  components: {
    HelloWorld
  },
  setup() {
    const message = ref('按钮未点击');

    const handleClick = () => {
      alert('按钮被点击了！');
      message.value = '按钮已点击！'; // 更新 message 的值
    };

    return {
      message,
      handleClick
    };
  }
};
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>