Organize showTooltipContent code
Organize showTooltipContent code

apache/incubator-echarts,100star/echarts,ecomfe/echarts,starlkj/echarts,ecomfe/echarts,apache/incubator-echarts,chenfwind/echarts,starlkj/echarts,chenfwind/echarts,starlkj/echarts,100star/echarts