我在将谷歌图表加载到单个页面时遇到问题。使用此处提供的指南：
https://developers.google.com/chart/interactive/docs/basic_load_libs
这里：
谷歌可视化图表在单独分区内的多个实例（加载图表的代码部分）
这是我的代码：
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load('visualization', '1', {
packages: ['bar']
});
google.setOnLoadCallback(drawStuff);
function drawStuff() {
/*SCAN TIME*/
var data = new google.visualization.arrayToDataTable([<%=JSONScanTimeArray%>]);
console.log(data);
var options = {
width: 750,
height: 400,
chart: {
title: 'SCAN TIME',
}};
var chart = new google.charts.Bar(document.getElementById('chart_div'));
console.log(chart);
chart.draw(data, options);
/*IMAGE ARTIFACTS*/
var data2 = new google.visualization.arrayToDataTable([<%=JSONIQArray%>]);
console.log(data2);
var options2 = {
width: 750,
height: 400,
chart: {
title: 'IMAGE QUALITY',
}};
var chart2 = new google.charts.Bar(document.getElementById('chart_div2'));
console.log(chart2);
chart2.draw(data2, options2);
}
</script>
再往下进入页面，我指定要加载条形图的ID：
<div>
<div id="chart_div" style="display:inline-block;margin:10px;"></div>
...
<div id="chart_div2" style="display:inline-block;margin:10px;"></div>
</div>
然而，每次两个图表中的一个都被描绘到我的页面中。在第一页加载时加载第一个图表，而在第二页加载时则加载第二个图表。
我的浏览器控制台很清楚（没有错误或警告），我可以看到脚本中创建的对象（数据、数据2、图表、图表2）是正常生成的。
但是，在每种情况下，未生成的图表都有一个空的innerHTML元素。
例如，未加载图表的innerHTML为空：
innerHTML: "<div style="position: relative; width: 750px; height: 400px;"><div style="position: absolute; left: 0px; top: 0px; width: 100%; height: 100%;"><svg width="750" height="400"><defs></defs></svg></div></div>"
而加载图表的innerHTML：
innerHTML: "<div style="position: relative; width: 750px; height: 400px;"><div style="position: absolute; left: 0px; top: 0px; width: 100%; height: 100%;"><svg width="750" height="400"><defs><filter x="-100%" y="-100%" width="300%" height="300%" id="rablshadow4"><feGaussianBlur in="SourceAlpha" stdDeviation="2"></feGaussianBlur><feOffset dx="0" dy="0"></feOffset><feComponentTransfer><feFuncA type="linear" slope="0"></feFuncA></feComponentTransfer><feMerge><feMergeNode></feMergeNode><feMergeNode in="SourceGraphic"></feMergeNode></feMerge></filter><filter x="-100%" y="-100%" width="300%" height="300%" id="rablshadow3"><feGaussianBlur in="SourceAlpha" stdDeviation="2"></feGaussianBlur><feOffset dx="0" dy="0"></feOffset><feComponentTransfer><feFuncA type="linear" slope="0.4"></feFuncA></feComponentTransfer><feMerge><feMergeNode></feMergeNode><feMergeNode in="SourceGraphic"></feMergeNode></feMerge></filter><filter x="-100%" y="-100%" width="300%" height="300%" id="rablshadow2"><feGaussianBlur in="SourceAlpha" stdDeviation="1"></feGaussianBlur><feOffset dx="0" dy="2"></feOffset><feComponentTransfer><feFuncA type="linear" slope="0.2"></feFuncA></feComponentTransfer><feMerge><feMergeNode></feMergeNode><feMergeNode in="SourceGraphic"></feMergeNode></feMerge></filter><filter x="-100%" y="-100%" width="300%" height="300%" id="rablshadow1"><feGaussianBlur in="SourceAlpha" stdDeviation="2"></feGaussianBlur><feOffset dx="0" dy="1"></feOffset><feComponentTransfer><feFuncA type="linear" slope="0.4"></feFuncA></feComponentTransfer><feMerge><feMergeNode></feMergeNode><feMergeNode in="SourceGraphic"></feMergeNode></feMerge></filter><filter x="-100%" y="-100%" width="300%" height="300%" id="rablshadow0"><feGaussianBlur in="SourceAlpha" stdDeviation="0"></feGaussianBlur><feOffset dx="0" dy="1"></feOffset><feComponentTransfer><feFuncA type="linear" slope="0.4"></feFuncA></feComponentTransfer><feMerge><feMergeNode></feMergeNode><feMergeNode in="SourceGraphic"></feMergeNode></feMerge></filter><clipPath id="rablclip0"><rect x="13.5" y="62.5" width="563" height="285"></rect></clipPath></defs><g><rect x="0" y="0" width="750" height="400" fill="white" stroke="black" stroke-width="0"></rect><text x="0" y="15" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 16px;" fill="#757575" dx="0px">IMAGE QUALITY</text><rect x="616.96875" y="62.5" width="12" height="12" rx="2" ry="2" fill="#4285F4"></rect><text x="636.96875" y="75.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2;" fill="#757575" dx="0px">Image Quality</text><rect x="616.96875" y="95.5" width="12" height="12" rx="2" ry="2" fill="#DB4437"></rect><text x="636.96875" y="108.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2;" fill="#757575" dx="0px">Image Quality Ref</text><rect x="13.5" y="62.5" width="563" height="285" fill="none"></rect></g><g><line x1="13.5" x2="576.5" y1="347.5" y2="347.5" stroke="#9E9E9E" stroke-width="1"></line><line x1="13.5" x2="576.5" y1="290.5" y2="290.5" stroke="#E0E0E0" stroke-width="1"></line><line x1="13.5" x2="576.5" y1="233.5" y2="233.5" stroke="#E0E0E0" stroke-width="1"></line><line x1="13.5" x2="576.5" y1="176.5" y2="176.5" stroke="#E0E0E0" stroke-width="1"></line><line x1="13.5" x2="576.5" y1="119.5" y2="119.5" stroke="#E0E0E0" stroke-width="1"></line><line x1="13.5" x2="576.5" y1="62.5" y2="62.5" stroke="#E0E0E0" stroke-width="1"></line></g><g><path d="M 60.672043010752674 120 A 2 2 0 0 1 62.672043010752674 122 L 62.672043010752674 347 A 0 0 0 0 1 62.672043010752674 347 L 26 347 A 0 0 0 0 1 26 347 L 26 122 A 2 2 0 0 1 28 120 Z" fill="#4285F4" clip-path="url(#rablclip0)"></path><path d="M 98.34408602150535 63 A 2 2 0 0 1 100.34408602150535 65 L 100.34408602150535 347 A 0 0 0 0 1 100.34408602150535 347 L 63.672043010752674 347 A 0 0 0 0 1 63.672043010752674 347 L 63.672043010752674 65 A 2 2 0 0 1 65.67204301075267 63 Z" fill="#DB4437" clip-path="url(#rablclip0)"></path><path d="M 178.58602150537632 347.5 A 0 0 0 0 1 178.58602150537632 347.5 L 178.58602150537632 347.5 A 0 0 0 0 1 178.58602150537632 347.5 L 141.91397849462365 347.5 A 0 0 0 0 1 141.91397849462365 347.5 L 141.91397849462365 347.5 A 0 0 0 0 1 141.91397849462365 347.5 Z" fill="#4285F4" clip-path="url(#rablclip0)"></path><path d="M 214.25806451612902 63 A 2 2 0 0 1 216.25806451612902 65 L 216.25806451612902 347 A 0 0 0 0 1 216.25806451612902 347 L 179.58602150537632 347 A 0 0 0 0 1 179.58602150537632 347 L 179.58602150537632 65 A 2 2 0 0 1 181.58602150537632 63 Z" fill="#DB4437" clip-path="url(#rablclip0)"></path><path d="M 294.5 347.5 A 0 0 0 0 1 294.5 347.5 L 294.5 347.5 A 0 0 0 0 1 294.5 347.5 L 257.82795698924724 347.5 A 0 0 0 0 1 257.82795698924724 347.5 L 257.82795698924724 347.5 A 0 0 0 0 1 257.82795698924724 347.5 Z" fill="#4285F4" clip-path="url(#rablclip0)"></path><path d="M 330.1720430107527 63 A 2 2 0 0 1 332.1720430107527 65 L 332.1720430107527 347 A 0 0 0 0 1 332.1720430107527 347 L 295.5 347 A 0 0 0 0 1 295.5 347 L 295.5 65 A 2 2 0 0 1 297.5 63 Z" fill="#DB4437" clip-path="url(#rablclip0)"></path><path d="M 410.4139784946237 347.5 A 0 0 0 0 1 410.4139784946237 347.5 L 410.4139784946237 347.5 A 0 0 0 0 1 410.4139784946237 347.5 L 373.741935483871 347.5 A 0 0 0 0 1 373.741935483871 347.5 L 373.741935483871 347.5 A 0 0 0 0 1 373.741935483871 347.5 Z" fill="#4285F4" clip-path="url(#rablclip0)"></path><path d="M 446.0860215053763 63 A 2 2 0 0 1 448.0860215053763 65 L 448.0860215053763 347 A 0 0 0 0 1 448.0860215053763 347 L 411.4139784946237 347 A 0 0 0 0 1 411.4139784946237 347 L 411.4139784946237 65 A 2 2 0 0 1 413.4139784946237 63 Z" fill="#DB4437" clip-path="url(#rablclip0)"></path><path d="M 526.3279569892472 347.5 A 0 0 0 0 1 526.3279569892472 347.5 L 526.3279569892472 347.5 A 0 0 0 0 1 526.3279569892472 347.5 L 489.6559139784946 347.5 A 0 0 0 0 1 489.6559139784946 347.5 L 489.6559139784946 347.5 A 0 0 0 0 1 489.6559139784946 347.5 Z" fill="#4285F4" clip-path="url(#rablclip0)"></path><path d="M 564 347.5 A 0 0 0 0 1 564 347.5 L 564 347.5 A 0 0 0 0 1 564 347.5 L 527.3279569892472 347.5 A 0 0 0 0 1 527.3279569892472 347.5 L 527.3279569892472 347.5 A 0 0 0 0 1 527.3279569892472 347.5 Z" fill="#DB4437" clip-path="url(#rablclip0)"></path></g><g></g><g><text x="63.17204301075269" y="364.5" style="cursor: default; 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-webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 12px;" fill="#757575" dx="-6.9375px">0</text><text x="7.5" y="294.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 12px;" fill="#757575" dx="-6.9375px">1</text><text x="7.5" y="237.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 12px;" fill="#757575" dx="-6.9375px">2</text><text x="7.5" y="180.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 12px;" fill="#757575" dx="-6.9375px">3</text><text x="7.5" y="123.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 12px;" fill="#757575" dx="-6.9375px">4</text><text x="7.5" y="66.5" style="cursor: default; -webkit-user-select: none; -webkit-font-smoothing: antialiased; font-family: Roboto2; font-size: 12px;" fill="#757575" dx="-6.9375px">5</text></g><g></g><g></g><g></g></svg></div></div>"
如果我使用：google.visualization.BarChart而不是：google.charts.Bar，那么两个图表都可以加载。然而，我需要使用"googlecharts.Bar"…
WhiteHat是对的，但出于某种原因，您也可以尝试使用setTimeout函数，如本例所示：
JSFiddle
function doSetTimeOutDrawChart(chart, data, options, delay){
setTimeout(function () {
chart.draw(data, options);
}, delay);
}