echars自定义y轴为图片

效果图如下： 代码如下： var img = { “0”:‘data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD4AAAA/CAYAAAC4nXvhAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyZpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBi

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