svg不能适配flex:1的大小，总是会超过容器。
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<title>标题</title>
</head>
<style>
.svguse {
background-color: red;
height: 100%;
}
</style>
<body>
<div style="height: 150px">
<div style="height: 100%">
<div style="height: 100%; display: flex; flex-direction: column">
<div class="semi-empty-image" style="flex: 1">
<svg aria-hidden="true" class="svguse">
<use xlink:href="#construction"></use>
</svg>
</div>
<div>
<div>建设中</div>
</div>
</div>
</div>
</div>
</body>
</html>