#获得唯一值 by gisoracle def getuniqueValue(inTable,inField): rows = arcpy.da.SearchCursor(inTable,[inField]) # Create an empty list uniqueList = [] try: for row in rows: v=row[0] # If the value is not already in the list, append it if v not in uniqueList…
描述 本例使用唯一值渲染器来作为美国的符号.每个州有一个字符串属性"SUB_REGION"表示它的国家的地区.UniqueValueRenderer.addValue()方法被用来重复地为每个区域定义一个颜色. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head&…
Given a binary tree, count the number of uni-value subtrees. A Uni-value subtree means all nodes of the subtree have the same value. For example:Given binary tree, 5 / \ 1 5 / \ \ 5 5 5 return 4. 给一个二叉树,求唯一值子树的个数.唯一值子树的所有节点具有相同值. 解法:递归 Java: /** * De…