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2019ncov.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
<meta name="renderer" content="webkit">
<title>jsClass练习</title>
<meta name="description" content="首页描述"/>
<meta name="keywords" content="首页关键词"/>
<meta name="author" content="Web Layout:amu"/>
<meta name="format-detection" content="telephone=no,date=no,address=no,email=no,url=no"/>
<link rel="stylesheet" href="./src/style/case.css?v=2">
</head>
<body>
<div id="main" style="width: 600px;height:400px;"></div>
</body>
<script src="https://cdn.bootcss.com/echarts/4.4.0-rc.1/echarts-en.common.min.js"></script>
<script>
let myChart = echarts.init(document.querySelector('#main'))
var base = +new Date(2020, 1, 1);
var oneDay = 24 * 3600 * 1000;
let date = [],
data = [];
let obj = [{
date:'2019/12/31',
total:27
},{
date:'2020/01/03',
total:44
},{
date:'2020/01/11',
total:41
},{
date:'2020/01/21',
total:291
},{
date:'2020/01/22',
total:440
},{
date:'2019/12/23',
total:614
}]
obj.map((item)=>{
date.push(item.date);
data.push(item.total+'');
})
console.log(date,data)
// for (var i = 1; i < 20; i++) {
// var now = new Date(base += oneDay);
// console.log([now.getFullYear(), now.getMonth(), now.getDate()].join('/'))
// date.push([now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'));
// data.push(Math.round((Math.random() - 0.5) * 20 + data[i - 1]));
// }
let option = {
tooltip: {
trigger: 'axis',
position: function (pt) {
return [pt[0], '10%'];
}
},
title: {
left: 'center',
text: '大数据量面积图',
},
toolbox: {
feature: {
dataZoom: {
yAxisIndex: 'none'
},
restore: {},
saveAsImage: {}
}
},
xAxis: {
type: 'category',
boundaryGap: false,
data: date
},
yAxis: {
type: 'value',
//boundaryGap: [0, '100%']
},
dataZoom: [{
type: 'slider',
xAxisIndex: 0,
filterMode: 'empty'
},
{
type: 'inside',
xAxisIndex: 0,
filterMode: 'empty'
}],
series: [
{
name: '模拟数据',
type: 'line',
smooth: true,
symbol: 'none',
sampling: 'average',
itemStyle: {
color: 'rgb(255, 70, 131)'
},
areaStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: 'rgb(255, 158, 68)'
}, {
offset: 1,
color: 'rgb(255, 70, 131)'
}])
},
data: data
}
]
};
myChart.setOption(option);
</script>
</html>