用c语言设计一个基于DOS菜单的应用程序。内容如下： 无向图的基本操作及应用 ① 创建无向图的邻接矩阵并打印 ② 创建无向图的邻接表并打印 ③ 无向图的深度优先遍历 ④ 无向图的广度优先遍历

好的，我可以为您提供一些关于用 C 语言设计基于 DOS 菜单的应用程序的建议。首先，您需要使用 C 语言编写代码来实现所需的功能，包括创建无向图、打印邻接矩阵或邻接表、深度优先遍历和广度优先遍历。接下来，您需要使用 DOS 命令行界面来创建交互式菜单，其中每个选项都对应着一个功能。您可以使用 switch 语句来实现菜单选项的选择，以及调用相应的函数来执行所需的操作。以下是一个简单的示例代码，供您参考：

#include <stdio.h>
#include <stdlib.h>

/* 定义无向图结构体 */
typedef struct {
    int** adj_matrix;   // 邻接矩阵
    int num_vertices;   // 顶点数
} Graph;

/* 创建无向图邻接矩阵 */
Graph* create_adj_matrix(int num_vertices) {
    Graph* graph = (Graph*) malloc(sizeof(Graph));
    graph->num_vertices = num_vertices;
    graph->adj_matrix = (int**) malloc(num_vertices * sizeof(int*));
    for (int i = 0; i < num_vertices; i++) {
        graph->adj_matrix[i] = (int*) malloc(num_vertices * sizeof(int));
        for (int j = 0; j < num_vertices; j++) {
            graph->adj_matrix[i][j] = 0;
        }
    }
    return graph;
}

/* 打印邻接矩阵 */
void print_adj_matrix(Graph* graph) {
    printf("Adjacency Matrix:\n");
    for (int i = 0; i < graph->num_vertices; i++) {
        for (int j = 0; j < graph->num_vertices; j++) {
            printf("%d ", graph->adj_matrix[i][j]);
        }
        printf("\n");
    }
}

/* 创建无向图邻接表 */
Graph* create_adj_list(int num_vertices) {
    Graph* graph = (Graph*) malloc(sizeof(Graph));
    graph->num_vertices = num_vertices;
    graph->adj_matrix = (int**) malloc(num_vertices * sizeof(int*));
    for (int i = 0; i < num_vertices; i++) {
        graph->adj_matrix[i] = NULL;
    }
    return graph;
}

/* 打印邻接表 */
void print_adj_list(Graph* graph) {
    printf("Adjacency List:\n");
    for (int i = 0; i < graph->num_vertices; i++) {
        printf("%d: ", i);
        for (int j = 0; j < graph->num_vertices; j++) {
            if (graph->adj_matrix[i][j] == 1) {
                printf("%d ", j);
            }
        }
        printf("\n");
    }
}

/* 深度优先遍历 */
void dfs(Graph* graph, int vertex, int* visited) {
    visited[vertex] = 1;
    printf("%d ", vertex);
    for (int i = 0; i < graph->num_vertices; i++) {
        if (graph->adj_matrix[vertex][i] == 1 && visited[i] == 0) {
            dfs(graph, i, visited);
        }
    }
}

/* 广度优先遍历 */
void bfs(Graph* graph, int vertex, int* visited) {
    int queue[graph->num_vertices];
    int front = 0;
    int rear = -1;
    visited[vertex] = 1;
    queue[++rear] = vertex;
    while (front <= rear) {
        int v = queue[front++];
        printf("%d ", v);
        for (int i = 0; i < graph->num_vertices; i++) {
            if (graph->adj_matrix[v][i] == 1 && visited[i] == 0) {
                visited[i] = 1;
                queue[++rear] = i;
            }
        }
    }
}

/* 主函数 */
int main() {
    int choice;
    int num_vertices;
    Graph* graph;
    int* visited;

    /* 显示菜单选项 */
    do {
        printf("\n");
        printf("1. Create adjacency matrix and print\n");
        printf("2. Create adjacency list and print\n");
        printf("3. Depth first search\n");
        printf("4. Breadth first search\n");
        printf("5. Exit\n");
        printf("\nEnter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                /* 创建邻接矩阵 */
                printf("Enter number of vertices: ");
                scanf("%d", &num_vertices);
                graph = create_adj_matrix(num_vertices);
                visited = (int*) malloc(num_vertices * sizeof(int));
                for (int i = 0; i < num_vertices; i++) {
                    visited[i] = 0;
                }
                /* 打印邻接矩阵 */
                print_adj_matrix(graph);
                break;
            case 2:
                /* 创建邻接表 */
                printf("Enter number of vertices: ");
                scanf("%d", &num_vertices);
                graph = create_adj_list(num_vertices);
                visited = (int*) malloc(num_vertices * sizeof(int));
                for (int i = 0; i < num_vertices; i++) {
                    visited[i] = 0;
                }
                /* 打印邻接表 */
                print_adj_list(graph);
                break;
            case 3:
                /* 深度优先遍历 */
                printf("Enter starting vertex: ");
                scanf("%d", &num_vertices);
                dfs(graph, num_vertices, visited);
                break;
            case 4:
                /* 广度优先遍历 */
                printf("Enter starting vertex: ");
                scanf("%d", &num_vertices);
                bfs(graph, num_vertices, visited);
                break;
            case 5:
                /* 退出程序 */
                exit(0);
            default:
                printf("Invalid choice!\n");
        }
    } while (choice != 5);

    return 0;
}

请注意，以上代码仅提供了一种可能的实现方式，您可以根据自己的需求进行修改和优化。同时，您还需要在 DOS 命令行环境中编译和运行该程序。