1.下载并引入echarts
2.准备一个具备大小的DOM容器(必须有宽高)
3.实例化echarts实例对象
4.指定配置项和数据(option)
5.将配置项设置给echarts实例对象

下载并引入echarts

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

准备一个具备大小的DOM容器(必须有宽高)

<div class="box"></div>
.box{
            width: 400px;
            height: 300px;
            background-color: pink;
        }

实例化echarts实例对象

var myChart = echarts.init(document.querySelector(".box"));

指定配置项和数据(option)

var option = {
            title: {
                text: 'ECharts 入门示例'
            },
            tooltip: {},
            legend: {
                data:['销量']
            },
            xAxis: {
                data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
            },
            yAxis: {},
            series: [{
                name: '销量',
                type: 'bar',
                data: [5, 20, 36, 10, 10, 20]
            }]
        };

将配置项设置给echarts实例对象

将配置项设置给echarts实例对象
myChart.setOption(option);