deqingli commented on issue #7583: sankey图如果target与source存在相同的值，就会导致浏览器崩溃 URL: https://github.com/apache/incubator-echarts/issues/7583#issuecomment-380340613 你好，这个问题是由于原始输入数据中存在环导致的。sankey 图理论上只支持有向无环图（DAG, Directed Acyclic Graph），所以原先的布局算法是默认输入数据是有向无环的，当有环的时候就会陷入死循环，当然这主要是我前期开发的时候欠考虑导致的，我会好好反思的。修改后的布局算法是按拓扑顺序遍历计算布局的，如果判断有环就会报错，不再绘制。
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