代码
digraph BalancedBinaryTree {node [fontname="Arial", shape=circle, style=filled, color="#ffffff", fillcolor="#0077be", fontsize=12, width=0.7, height=0.7];edge [fontname="Arial", fontsize=10, color="#333333", arrowsize=0.5];node1 [label="1"];node2 [label="2"];node3 [label="3"];node4 [label="4"];node5 [label="5"];node6 [label="6"];node7 [label="7"];node8 [label="8"];node9 [label="9"];node10 [label="10"];node11 [label="11"];node12 [label="12"];node13 [label="13"];node14 [label="14"];node15 [label="15"];node1 -> {node2, node3};node2 -> {node4, node5};node3 -> {node6, node7};node4 -> {node8, node9};node5 -> {node10, node11};node6 -> {node12, node13};node7 -> {node14, node15};
}
效果
