为什么这个文件放到html里无法显示-lines <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ECharts</title>
</head>
<body>
<!-- 为ECharts准备一个具备大小(宽高)的Dom -->
<div id="main" style="height:100%"></div>
<!-- ECharts单文件引入 -->
<script src='https://api.mapbox.com/mapbox-gl-js/v0.38.0/mapbox-gl.js'></script>
<link href='https://api.mapbox.com/mapbox-gl-js/v0.38.0/mapbox-gl.css' rel='stylesheet' />
<script src=' http://echarts.baidu.com/resource/echarts-gl-latest/dist/echarts-gl.min.js'></script>
<script type="text/javascript">
var dom = document.getElementById("main");
var myChart = echarts.init(dom);
mapboxgl.accessToken = 'pk.eyJ1IjoibWlyYTEyMy0iLCJhIjoiY2o5MTllajFtMzU2YTJ3bzQwMzkyOHp0aSJ9.eBsLy_jYJZm8C9bM9vqpbg';
var mapboxgl_style = 'mapbox://styles/mira123-/cj93taakp6e152rqezb39fldc';
var mapboxgl_center = [120.30327558517455, 31.55755415024492];
myChart.setOption({
mapbox: {
center: mapboxgl_center,
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