option = { backgroundColor: '#000', grid: { top: 40, left: 90, right: 40, bottom: 40 }, legend: { data: ['折线1', '折线2'], left: 30, icon: "rect", itemWidth: 30, itemHeight: 2, textStyle: { color: "#fff" } }, tooltip: { trigger: "axis" }, xAxis: { type: "category", axisTick: { show: false }, axisLabel: { color: "#fff" }, axisLine: { lineStyle: { color: "#fff" } }, boundaryGap: false, data: [1, 2, 3, 4, 5, 6, 7] }, yAxis: { type: "value", axisTick: { show: false }, axisLine: { show: false }, axisLabel: { color: "#fff" }, splitLine: { lineStyle: { opacity: 0.5 } } }, series: [{ name: '折线1', data: [200, 134, 305, 200, 89, 100, 300], type: "line", showSymbol: false, itemStyle: { color: '#3FF4B8' } },{ name: '折线2', data: [210, 340, 50, 100, 69, 120, 200], type: "line", showSymbol: false, itemStyle: { color: '#FFCC33' } }] };