echart 环形饼图中间再加上一个环怎么弄？

Posted 2023-03-23

就现在我需要再加上中间的那一个小环怎么添加？我的代码是这样的：app.title = '环形图';option = tooltip : trigger: 'item', formatter: "a <br/>b : c (d%)" , legend: orient: 'vertical', x: 'right', y: 'center', data: ['CCTV','VBID','LPR','MLPR','VMS','TSC'], padding: 50, itemGap:40, itemHeight:25 , series : [ name: '访问来源', type: 'pie', radius: ['40%', '70%'], data:[ value:335, name:'CCTV', value:310, name:'VBID', value:234, name:'LPR', value:135, name:'MLPR', value:320, name:'VMS', value:200, name:'TSC', ], itemStyle: emphasis: shadowBlur: 10, shadowOffsetX: 0, shadowColor: 'rgba(0, 0, 0, 0.5)' ];

参考技术A var chart = eval('[ "counts":3, "region":"东城区" , "counts":2, "region":"朝阳区" , "counts":5, "region":"海淀区" ]');var length = chart.length;var arrays = new Array();for(var i = 0l i < length; i++) arrays[i] = v。