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Update ch5-06.md
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@ -101,7 +101,7 @@ visitAll := func(items []string) {
} }
``` ```
在topsort中，首先对prereqs中的key排序，再调用visitAll。因为prereqs映射的是切片而不是更复杂的map，所以数据的遍历次序是固定的，这意味着你每次运行topsort得到的输出都是一样的。 topsort的输出结果如下: 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。
``` ```
1: intro to programming 1: intro to programming