利用 formatter 闭包捕获 this从 chart.getOption() 读取 legend 选中状态。1. 顶部加 const self thisinitChart() { const self this // ← 新增 this.chart echarts.init(this.$refs.pieChart) ...2. 替换 tooltip formatter// 原 formatter: function(params) { return strong params.name /strongbr/ 工时: params.value.toFixed(1) hbr/ 占比: params.percent % } // 新 formatter: function(params) { const option self.chart.getOption() const selected option.legend?.[0]?.selected ?? {} const allData self.data const visible allData.filter(d selected[d.name] ! false) const total visible.reduce((s, d) s (d.value || 0), 0) const pct total ? (params.value / total * 100).toFixed(1) : 0.0 return strong params.name /strongbr/ 工时: params.value.toFixed(1) hbr/ 占比: pct % }3. 替换 label formatter字符串 → 函数// 原 label: { show: true, formatter: {b}\n{c} h ({d}%), fontSize: 12, fontWeight: 500 } // 新 label: { show: true, formatter: function(params) { const option self.chart.getOption() const selected option.legend?.[0]?.selected ?? {} const allData self.data const visible allData.filter(d selected[d.name] ! false) const total visible.reduce((s, d) s (d.value || 0), 0) const pct total ? (params.value / total * 100).toFixed(1) : 0.0 return params.name \n params.value.toFixed(1) h ( pct %) }, fontSize: 12, fontWeight: 500 }效果图