一直以为是环境配置的问题,改了一晚上vscode和浏览器Edge的各种配置,终于找到导致html空白的原因,其实问题还是出在代码上,下面是一个案例的正确代码,直接运行就可以出结果:
另外,还要注意html在与导入的含有echarts.min.js文件在同一个文件夹下:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src = "js/echarts.min.js"></script>
</head>
<body>
<!-- 准备一个容器div,放置图表 -->
<div id = "demo1" style = "width:600px;height:400px;"></div>
<!---使用javascript 绘制图表-->
<script type = "text/javascript">
//初始化绘制图表的echats实例
var myChart = echarts.init(document.querySelector('#demo1'));
//指定图标的配置
var option = {
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross',
crossStyle: {
color: '#990'
}
}
},
toolbox: {
feature: {
dataView: { show: true, readOnly: false },
magicType: { show: true, type: ['line', 'bar'] },
restore: { show: true },
saveAsImage: { show: true }
}
},
legend: {
data: ['Evaporation', 'Precipitation', 'Temperature']
},
xAxis: [
{
type: 'category',
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
axisPointer: {
type: 'shadow'
}
}
],
yAxis: [
{
type: 'value',
name: 'Precipitation',
min: 0,
max: 250,
interval: 50,
axisLabel: {
formatter: '{value} ml'
}
},
{
type: 'value',
name: 'Temperature',
min: 0,
max: 25,
interval: 5,
axisLabel: {
formatter: '{value} °C'
}
}
],
series: [
{
name: 'Evaporation',
type: 'bar',
tooltip: {
valueFormatter: function (value) {
return value + ' ml';
}
},
data: [
2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3
]
},
{
name: 'Precipitation',
type: 'bar',
tooltip: {
valueFormatter: function (value) {
return value + ' ml';
}
},
data: [
2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3
]
},
{
name: 'Temperature',
type: 'line',
yAxisIndex: 1,
tooltip: {
valueFormatter: function (value) {
return value + ' °C';
}
},
data: [2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2]
}
]
};
//对实例对象设置配置
myChart.setOption(option)
</script>
</body>
</html>