bool LoadData(ALDirNetwork<char, int>& graph) { ifstream file("GraphData.txt"); if (!file.is_open()) { return false; } int Vexnum, Arcnum; file >> Vexnum >> Arcnum; //读入顶点数，弧数目； for (int i = 0;i

以下是对给定代码的注释：

bool LoadData(ALDirNetwork<char, int>& graph)
{
	ifstream file("GraphData.txt");
	if (!file.is_open()) {
		return false;
	}
	
	int Vexnum, Arcnum;
	file >> Vexnum >> Arcnum; // 读入顶点数和弧数目
	
	for (int i = 0; i < Vexnum; i++)
	{
		char ch;
		file >> ch;
		graph.InsertVex(ch); // 插入顶点
	}
	
	for (int i = 0; i < Arcnum; i++)
	{
		int v1, v2, w;
		file >> v1 >> v2 >> w;
		graph.InsertArc(v1, v2, w); // 插入弧
	}
	
	return true;
}

void DFS(ALDirNetwork<char, int>& graph,int v, void(*visit)(const char&))
{
	char e;
	graph.SetVisitedTag(v, VISITED);
	graph.GetElem(v, e);
	visit(e);
	
	for (int w = graph.GetFirstAdjvex(v); w != -1; w = graph.GetNextAdjvex(v, w))
	{
		if (graph.GetVisitedTag(w) == UNVISITED)
			DFS(graph, w, visit); // 递归进行深度优先搜索
	}
}

void DFSTraverse(ALDirNetwork<char, int>& graph, void(*visit)(const char&))
{
	int v;
	
	for (v = 0; v < graph.GetVexNum(); v++)
    {
        graph.SetVisitedTag(v, UNVISITED);
    }
    
    for (v = 0; v < graph.GetVexNum(); v++)
    {
        if (graph.GetVisitedTag(v) == UNVISITED)
            DFS(graph, v, visit); // 对未访问的顶点进行深度优先搜索
    }
}

void BFS(ALDirNetwork<char, int>& graph ,int v, void(*visit)(const char&))
{
	LinkQueue<int> vexq;
	int u, w;
	char e;
	
	graph.SetVisitedTag(v, VISITED);
	graph.GetElem(v, e);
	visit(e);
	vexq.EnQueue(v);
	
	while (!vexq.IsEmpty()) {
		vexq.DelQueue(u);
		
		for (w = graph.GetFirstAdjvex(u); w != -1; w = graph.GetNextAdjvex(u, w))
			if (graph.GetVisitedTag(w) == UNVISITED) {
				graph.SetVisitedTag(w, VISITED);
				graph.GetElem(w, e);
				visit(e);
				vexq.EnQueue(w); // 将顶点入队列
			}
	}
}

void BFSTraverse(ALDirNetwork<char, int>& graph, void(*visit)(const char&))
{
	int v;
	
	for (v = 0; v < graph.GetVexNum(); v++)
    {
        graph.SetVisitedTag(v, UNVISITED);
    }
    
    for (v = 0; v < graph.GetVexNum(); v++)
    {
        if (graph.GetVisitedTag(v) == UNVISITED)
            BFS(graph, v, visit); // 对未访问的顶点进行广度优先搜索
    }
}

以上是给定代码的注释。其中包含了加载图数据、深度优先搜索和广度优先搜索的函数实现。注释部分解释了代码的功能和实现方式。

内容由零声教学AI助手提供，问题来源于学员提问