一位数据颜色容错处理

src/views/analyse/custom/mixins.js

@@ -305,7 +305,7 @@ export const chartOption = {
         type: type,
         areaStyle: areaStyle,
         itemStyle: {
-          color: this.form.setting.config.color[0].color
+          color: this.form.setting.config.color[0]?.color
         },
         barWidth: this.form.setting.barWidth,
         label: this.getDataLabel()