Add clear and getOption methods
Add clear and getOption methods

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