关于前端:ECharts饼图隐藏数据为0的数据

思路：
1.每一项数据增加默认项 show 为 true
label: { show: true },
labelLine: { show: true }

2.在遍历 data 的属于为0的就把 show 赋值为 false

/* 预警事件 */    initCensus() {      this.census = {        tooltip: {          trigger: "item",          formatter: `{a} <br/>{b} <br/> {c} ({d}%)`,        },        series: [          {            name: "",            type: "pie",            radius: "60%",            center: ["50%", "50%"],            data: [              {                value: this.ChartData["预警"]["储存工夫"],                name: "储存工夫",                itemStyle: { color: "#2498ff" },                label: { show: true },//增加项                labelLine: { show: true },//增加项              },              {                value: this.ChartData["预警"]["可燃气体"],                name: "可燃气体",                itemStyle: { color: "#18e3ff" },                label: { show: true },                labelLine: { show: true },              },              {                value: this.ChartData["预警"]["TVOC"],                name: "TVOC",                itemStyle: { color: "#1fb4ff" },                label: { show: true },                labelLine: { show: true },              },            ].sort(function (a, b) {              return a.value - b.value;            }),            roseType: "radius",            label: {              position: "outer",              alignTo: "none",              color: "#f1f1f1",            },            labelLine: {              lineStyle: {                color: "#f1f1f1",              },              smooth: 0.1,              length: 10,              length2: 12,            },            animationType: "scale",            animationEasing: "elasticOut",            animationDelay: function (idx) {              return Math.random() * 200;            },          },        ],      };      this.setEchartsHide(this.census.series[0].data);    },

 /* 暗藏数据为0的数据 */    setEchartsHide(data) {      const Arr = data.map((item) => item.value).join("");      //如果每项都为0则不暗藏      if (+Arr) {        data.forEach((item) => {          if (!item.value) {            item.label.show = false;            item.labelLine.show = false;          }        });      }    },