异步加载数据

这是图片

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<!DOCTYPE html>
<!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="../echarts.js"></script>
    <script src="../jquery/jquery.js"></script>
    <style>
        .box {
            width: 800px;
            height: 600px;
            background-color: aqua;
        }
    </style>
</head>
<body>
<div class="box"></div>
<script>
    let box = document.querySelector(".box")
    let myChart = echarts.init(box)
    let option ={
        title:{
            text:"标题",
            subtext:"副标题",
            left:"center"
        },
        toolbox:{
            show:true,
            feature:{
                saveAsImage:{
                    show:true
                }
            }
        },
        tooltip:{
            trigger:"item",
            formatter:"{a}</br>{b}:{c}({d}%)"
        },
        legend:{
            x:1,
            data:[],
        },
        calculable: true,
        series:[
            {
                data:[
                    
                    ]
            }
        ]
    }
    myChart.setOption(option)
    myChart.showLoading({
        text:"请你稍稍休息片刻,loading data...",
        
    })
    let showData = []
    let legent = []
    setTimeout(function(){
        $.get("data_pie.json").done(function(data){
        showData = data.data_pie
        console.log(data.data_pie.length)
        for(let i = 0;i<data.data_pie.length;i++){
            console.log(data.data_pie[i].name)
            legent.push(data.data_pie[i].name)
        }
        option.legend.data=legent
        console.log(showData)
        myChart.setOption(option)
        myChart.setOption({
        series:[
            {
                name:'访问来源',
                type: 'pie',
                data:showData
            }
        ]
    })
    })
    myChart.hideLoading()
    }, 3000)
</script>
</body>
</html>

事件

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<!DOCTYPE html>
<html>

<head>
	<meta charset="utf-8">
	<script type="text/javascript" src='echarts.js'></script>
</head>

<body>
	<div id="main" style="height: 800px"></div>
	<script type="text/javascript">
		
		var myChart = echarts.init(document.getElementById("main"));
		var option = { 
			backgroundColor: 'rgba(128, 128, 128, 0.1)',  
			title: { text: '22级电子商务学院各专业招生情况', left: 'center', top: 9 },
			legend:{left:'70%',top:100,orient:'vertical',},
			tooltip: {  
				trigger: 'item', show: true,
				formatter: "{a} <br/>{b} : {c}"
			},
		
			series: [  
				{   
					name: '招生专业比例', type: 'pie',
					data: [
						{name:'软件技术',value:180},
						{name:'大数据',value:85},
						{name:'计算机网络',value:88},
						{name:'电子商务',value:350},
						{name:'软件工程',value:165},
					]
				},
				
			]
		};

		myChart.setOption(option); 
		myChart.on("click",function(params){
			alert(params.name+"的专业招生比例为:"+params.data.value+"\n"
			+"--seriesName:"+params.seriesName+"\n"
			+"--color:"+params.color+"\n"
			+"--seriesType:"+params.seriesType
			)
			if(params.name=="软件技术"){
				window.open("https://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=%E8%BD%AF%E4%BB%B6%E6%8A%80%E6%9C%AF&fenlei=256&oq=%25E8%25B6%2585%25E6%2598%259F&rsv_pq=a72f8e3e000fe0bb&rsv_t=550fLLawVAjY9HKEF5eFvZfVRpFSLlQFxE%2BGpxtkqzwKIA%2FemhOInmppPK0&rqlang=cn&rsv_enter=1&rsv_dl=tb&rsv_sug3=3&rsv_sug1=3&rsv_sug7=100&rsv_sug2=0&rsv_btype=t&inputT=4628&rsv_sug4=5366")
			}
			console.log(params)
		})
		window.addEventListener("resize",function(){
			myChart.resize()
		})
		myChart.on("legendselectchanged",function(params){

			if(params.selected[params.name]){
				console.log(params.name+"被你选中了")
			}else{
				console.log(params.name+"被你取消选中了")
			}
		})
		
	</script>
</body>

</html>

主题

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<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Document</title>

    <script src="echarts.js"></script>

    <script src="theme/dark.js"></script>

    <script src="theme/infographic.js"></script>

    <script src="theme/macarons.js"></script>

    <script src="theme/shine.js"></script>

    <script src="theme/vintage.js"></script>

    <style>

        .box{

            height: 600px;

            width: 1200px;

        }

    </style>

</head>

<body>

    <h3>切换主题</h3>

    <select class="sel">

        <option value="dark">dark</option>

        <option value="infographic">infographic</option>

        <option value="macarons">macarons</option>

        <option value="shine">shine</option>

        <option value="vintage">vintage</option>

    </select>

    <div class="box"></div>

    <script>

        let box = document.querySelector(".box")

        let myChart = echarts.init(box,"dark")

        let option = {

            title: {

                text: 'Stacked Area Chart'

            },

            tooltip: {

                trigger: 'axis',

                axisPointer: {

                type: 'cross',

                label: {

                    backgroundColor: '#6a7985'

                }

                }

            },

            legend: {

                data: ['Email', 'Union Ads', 'Video Ads', 'Direct', 'Search Engine']

            },

            toolbox: {

                feature: {

                saveAsImage: {}

                }

            },

            grid: {

                left: '3%',

                right: '4%',

                bottom: '3%',

                containLabel: true

            },

            xAxis: [

                {

                type: 'category',

                boundaryGap: false,

                data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']

                }

            ],

            yAxis: [

                {

                type: 'value'

                }

            ],

            series: [

                {

                name: 'Email',

                type: 'line',

                stack: 'Total',

                areaStyle: {},

                emphasis: {

                    focus: 'series'

                },

                data: [120, 132, 101, 134, 90, 230, 210]

                },

                {

                name: 'Union Ads',

                type: 'line',

                stack: 'Total',

                areaStyle: {},

                emphasis: {

                    focus: 'series'

                },

                data: [220, 182, 191, 234, 290, 330, 310]

                },

                {

                name: 'Video Ads',

                type: 'line',

                stack: 'Total',

                areaStyle: {},

                emphasis: {

                    focus: 'series'

                },

                data: [150, 232, 201, 154, 190, 330, 410]

                },

                {

                name: 'Direct',

                type: 'line',

                stack: 'Total',

                areaStyle: {},

                emphasis: {

                    focus: 'series'

                },

                data: [320, 332, 301, 334, 390, 330, 320]
                },
                {
                name: 'Search Engine',
                type: 'line',
                stack: 'Total',
                label: {
                    show: true,
                    position: 'top'
                },
                areaStyle: {},
                emphasis: {
                    focus: 'series'
                },
                data: [820, 932, 901, 934, 1290, 1330, 1320]
                }
            ]
        };

        myChart.setOption(option)

        const sel = document.querySelector(".sel")

        sel.addEventListener("change",function(){

            myChart.dispose()

            let s = this.value

            console.log(s)

            myChart = echarts.init(box,s)

            myChart.setOption(option)

        })

    </script>

</body>

</html>




多表联动

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<!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="echarts.js"></script>
</head>
<style>
    .box{
        height: 300px;
        width: 600px;
    }
    .box2{
        height: 300px;
        width: 600px;
    }
</style>
<body>
    <div class="box"></div>
    <div class="box2"></div>
</body>
<script>
    let box = document.querySelector(".box")
    let box2 = document.querySelector(".box2")
    let myChart = echarts.init(box)
    let myChart2 = echarts.init(box2)
    let option={
        title:{
            text:"标题一",
            subtext:"副标题"
        },
        tooltip:{
            trigger: 'item'
        },
        xAxis:{
            type:'category',
            data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
        },
        yAxis:{
            type:'value',
        },
        series:[
        {
            type:'bar',
            name:'销售',
            data:[320, 302, 301, 334, 390, 330, 320],
            label:{
                show:true
            }
        }
        ]
    }
    let option2={
        title:{
            text:'饼图',
            subtext:"副标题",
            left:'center'
        },
        tooltip:{
            trigger:'item'
        },
        series:[
            {
            type:'pie',
            name:'Access From',
            radius:["45%","75%"],
            center: ['58%', '55%'],
            data:[
                {value: 60, name: 'Mon'},
                {value:40,name:'Tue'},
                {value:30,name:'Wed'},
                {value:80,name:'Thu'},
                {value:90,name:'Fri'},
                {value:34,name:'Sat'},
                {value:65,name:'Sun'}
            ]
            }

        ]
    }
    myChart.setOption(option)
    myChart2.setOption(option2)
    echarts.connect([myChart,myChart2])
</script>
</html>