## CSSStyleDeclaration

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### 方法
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## 示例
```html
<template>
	<button @click="showPop">显示弹层</button>
	<view ref="pop" style="position: absolute; display: none;">
		<text>123</text>
	</view>
</template>
<script lang="uts">
	export default {
		methods: {
			showPop: function () {
				(this.$refs["pop"] as Element).style.setProperty("display","flex")
			}
		}
	}
</script>
```
