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@@ -613,7 +613,7 @@ func topoSort(m map[string][]string) []string {
// ...
}
</code></pre>
<p>在toposort程序的输出如下所示，它的输出顺序是大多人想看到的固定顺序输出，但是这需要我们多花点心思才能做到。哈希表prepreqs的value是遍历顺序固定的切片，而不再试遍历顺序随机的map，所以我们对prereqs的key值进行排序，保证每次运行toposort程序，都以相同的遍历顺序遍历prereqs。</p>
<p>在toposort程序的输出如下所示，它的输出顺序是大多人想看到的固定顺序输出，但是这需要我们多花点心思才能做到。哈希表prepreqs的value是遍历顺序固定的切片，而不再是遍历顺序随机的map，所以我们对prereqs的key值进行排序，保证每次运行toposort程序，都以相同的遍历顺序遍历prereqs。</p>
<pre><code>1: intro to programming
2: discrete math
3: data structures