{"name":"销量","type":"bar","data":[5, 20, 40, 10, 10, 20]};{"name":"进货","type":"bar","data":[5, 20, 40, 10, 10, 20]}当有两个或者以上时,我怎么从后台循环数据到前台,前台怎么循环获取,还有就是做这个的时候经常报 echarts_all.js我引用包的错误