extjs4 tree check 级联选择 实现效果: 关键代码: function changeAllNode(node, isCheck) { allChild(node, isCheck); allParent(node, isCheck); function allChild(nodec, isCheckc) { var chileNodes = nodec.childNodes; Ext.Array.each(chileNodes, function (nd) { if (nd.ha
[POJ 2486] Apple Tree(树型dp) Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 8981 Accepted: 2990 Description Wshxzt is a lovely girl. She likes apple very much. One day HX takes her to an apple tree. There are N nodes in the tree. Each