关键点：series.stack: “”, 同个类目轴上系列配置相同的stack值可以堆叠放置。
具体实现
series: [{name: "绿灯",type: "bar",stack: "total",emphasis: {focus: "series",},data: [95, 90, 80, 65, 60, 50, 50, 30, 20, 10],itemStyle: {//自定义颜色normal: {color: "#14ee14" },},},{name: "黄灯",type: "bar",stack: "total",emphasis: {focus: "series",},data: [3, 5, 10, 10, 10, 20, 10, 30, 15, 10],itemStyle: {normal: {color: "yellow" },},},{name: "红灯",type: "bar",stack: "total",emphasis: {focus: "series",},data: [1, 1, 3, 15, 10, 20, 10, 20, 25, 5],itemStyle: {normal: {color: "#dd1818" },},},{name: "关灯",type: "bar",stack: "total",emphasis: {focus: "series",},data: [1, 4, 7, 10, 20, 10, 20, 20, 40, 75],itemStyle: {normal: {color: "#d3dfe6" },},},],
