this.echarts1_option.option.series.push({
name: this.cclass[index],
data: element,
type: "line",
areaStyle: {},
itemStyle: {
normal: {
lineStyle: {
color: color[index],
},
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{ offset: 0, color: color[index] },
{ offset: 1, color: "-sharpfff" },
]),
},
},
});