ECharts柱状图实例

古城微笑少年丶 2022-06-14 04:23 260阅读 0赞

ECharts柱状图实例

test.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>柱状图</title>
    <script type="text/javascript" src="echartsjs/echarts.min.js"></script>
    </head>
    <body>
    <div id="main" style="height:300px;width: 350px;"></div>
    <script type="text/javascript">
            // 基于准备好的dom，初始化echarts实例
            var myChart = echarts.init(document.getElementById('main'));
    	
            //*****I do it start********************
            var list = new Array();//前台固定数据。可以通过ajax等方式获取后台查询数据。
            list = [
            		{"course":"语文","score":"5"},
            		{"course":"数学","score":"20"},
            		{"course":"外语","score":"36"},
            		{"course":"音乐","score":"10"},
            		{"course":"体育","score":"10"},
            		{"course":"美术","score":"20"}
            	];
            var course = new Array();//声明数组存储课程
            var score = new Array();//声明数组存储分数
            //遍历list存储数据
            for ( var i = 0; i < list.length; i++) {
            	course[i] = list[i].course;
            	score[i] = list[i].score;
    		}
            //alert(course);
            //alert(score);
            //*****I do it end**********************
            
            // 指定图表的配置项和数据
            var option = {
                title: {
                    text: '成绩统计_柱状图'
                },
                tooltip: {},
                legend: {
                    data:['成绩']
                },
                xAxis: {
                    data: course//数据填充
                },
                yAxis: {},
                series: [{
                    name: '成绩',
                    type: 'bar',
                    data: score//数据填充
                }]
            };
    
            // 使用刚指定的配置项和数据显示图表。
            myChart.setOption(option);
        </script>
    </body>
    </html>

效果图：

![Center][]

[Center]: /images/20220614/ed150e01af9a434eb2995ccb1f6eb64e.png