<cn>
#### 自定义位置
自定义位置，点击触发按钮抽屉从相应的位置滑出，点击遮罩区关闭
</cn>

<us>
#### Custom Placement
Basic drawer.
</us>

```tpl
<template>
  <div>
    <a-radio-group style="margin-right: 8px" :defaultValue="placement" @change="onChange">
      <a-radio value="top">top</a-radio>
      <a-radio value="right">right</a-radio>
      <a-radio value="bottom">bottom</a-radio>
      <a-radio value="left">left</a-radio>
    </a-radio-group>
    <a-button type="primary" @click="showDrawer">
      Open
    </a-button>
    <a-drawer
      title="Basic Drawer"
      :placement="placement"
      :closable="false"
      @close="onClose"
      :visible="visible"
    >
      <p>Some contents...</p>
      <p>Some contents...</p>
      <p>Some contents...</p>
    </a-drawer>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        visible: false,
        placement: 'left',
      };
    },
    methods: {
      showDrawer() {
        this.visible = true;
      },
      onClose() {
        this.visible = false;
      },
      onChange(e) {
        this.placement = e.target.value;
      },
    },
  };
</script>
```