<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <meta charset='utf-8' />
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <title>计算面积</title>
    <!--引入第三方的jquery脚本库-->
    <script include="jquery" src="./static/libs/include-lib-local.js"></script>
    <!-- Cesium脚本库文件引用 -->
    <script src="./static/libs/include-cesium-local.js"></script>
    <!--当前示例页面样式表引用-->
    <link rel="sty