用vue写一个精美样式的模态框

当然可以！以下是一个简单的 Vue 模态框组件示例：

<template>
  <div class="modal" v-if="show">
    <div class="modal-overlay" @click="close"></div>
    <div class="modal-container">
      <div class="modal-header">
        <h3>{{ title }}</h3>
        <button class="modal-close" @click="close">×</button>
      </div>
      <div class="modal-body">
        <slot></slot>
      </div>
      <div class="modal-footer">
        <button class="modal-button" @click="close">{{ buttonText }}</button>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    show: Boolean,
    title: String,
    buttonText: {
      type: String,
      default: 'Close'
    }
  },
  methods: {
    close() {
      this.$emit('close');
    }
  }
};
</script>

<style>
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-container {
  position: relative;
  width: 500px;
  max-width: 100%;
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #ccc;
}

.modal-header h3 {
  margin: 0;
}

.modal-close {
  border: none;
  background-color: transparent;
  font-size: 20px;
  cursor: pointer;
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 20px;
  border-top: 1px solid #ccc;
}

.modal-button {
  border: none;
  background-color: #007bff;
  color: #fff;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
}
</style>

你可以在父组件中使用这个模态框组件，例如：

<template>
  <div>
    <button @click="showModal = true">Show Modal</button>
    <modal :show="showModal" title="My Modal">
      <p>This is my modal content.</p>
    </modal>
  </div>
</template>

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

export default {
  components: {
    Modal
  },
  data() {
    return {
      showModal: false
    };
  }
};
</script>

这个示例中，当用户点击 "Show Modal" 按钮时，模态框会显示出来，包含标题 "My Modal" 和内容 "This is my modal content."。用户可以点击模态框上的 "Close" 按钮或点击模态框外部的遮罩层来关闭模态框。