这是本人第一次写博客文章
刚把课程设计写完，很开心，之前一直有bug，搞了几天，没有调试出来，于是换了一种写法，避免了bug。希望我的这些代码可以给正在写课程设计的同学，一点帮助。里面有的代码也是来自博客，然后结合我自己的代码而成，写的不是很好，不喜勿喷。
代码如下：
#include <iostream> #include <string> #include<iomanip>//引入输入输出格式头文件using namespace std;const int Maxsize = 50;typedef struct{string code;string name;string intro;}vertex;class MGraph{public:MGraph(int n, int e);void Seek(int i);void Floyd();void Allpaths();void Allpathlengths();void Printshortpath();private:vertex a[Maxsize];int arc[Maxsize][Maxsize];int vertexNum, arcNum;int dist[Maxsize][Maxsize];string path[Maxsize][Maxsize];};MGraph::MGraph(int n, int e){int i, j;vertexNum = n;arcNum = e;a[0].code = "a";a[0].name = "校门";a[0].intro = "该门为正门，也叫南门";a[1].code = "b";a[1].name = "音乐楼";a[1].intro = "刚建成不久，是音乐学院教学用楼，设备齐全，是本校最好的教学楼";a[2].code = "c";a[2].name = "体育馆";a[2].intro = "用于进行体育活动与教学";a[3].code = "d";a[3].name = "医务室";a[3].intro = "给学生提高基本的医疗救助，大病还需前往大医院治疗";a[4].code = "e";a[4].name = "教B";a[4].intro = "也称为弘文楼";a[5].code = "f";a[5].name = "图书馆";a[5].intro = "读书与学习的地方，是我校标志性建筑物";a[6].code = "g";a[6].name = "教A";a[6].intro = "也称为崇文楼";a[7].code = "h";a[7].name = "生化楼";a[7].intro = "jjfgkjh";a[8].code = "i";a[8].name = "宿舍";a[8].intro = "学生生活的地方";a[9].code = "j";a[9].name = "操场";a[9].intro = "运动场所，也是夜晚小情侣们约会的场所，夜晚慎入，避免吃狗粮，嘻嘻";a[10].code = "k";a[10].name = "理工楼";a[10].intro = "理科生教学用楼";for (i = 0; i<vertexNum; i++) //初始化边，请将不到达边初始值为最大值，这里使用10000for (j = 0; j<vertexNum; j++)arc[i][j] = 10000;arc[0][1] = 500;arc[0][8] = 1000;arc[0][3] = 400;arc[0][6] = 500;arc[1][2] = 100;arc[2][3] = 100;arc[3][6] = 100;arc[6][8] = 400;arc[2][4] = 50;arc[2][5] = 50;arc[5][6] = 100;arc[4][7] = 100;arc[5][7] = 100;arc[6][9] = 300;arc[7][10] = 200;arc[9][10] = 400;arc[8][9] = 500;}void MGraph::Seek(int i){cout << "景点代号：" << a[i].code << endl;cout << "景点名称：" << a[i].name << endl;cout << "景点简介：" << a[i].intro << endl;cout << "***************************************" << endl;}void MGraph::Floyd(){int i, j, k;for (i = 0; i<vertexNum; i++) //初始化dist和path for (j = 0; j<vertexNum; j++){dist[i][j] = arc[i][j];if (dist[i][j] != 10000)path[i][j] = a[i].code + a[j].code;else path[i][j] = " ";}for (k = 0; k<vertexNum; k++) //判定顶点i j之间是否经过kfor (i = 0; i<vertexNum; i++)for (j = 0; j<vertexNum; j++)if (dist[i][k] + dist[k][j]<dist[i][j]){dist[i][j] = dist[i][k] + dist[k][j];path[i][j] = path[i][k] + "-" + path[k][j];}}void MGraph::Allpaths(){cout << "***************************************" << endl;cout << "***景点代号： ***" << endl;cout << "***a校门 b音乐楼 c体育馆***" << endl;cout << "***d医务室 e教B f图书馆***" << endl;cout << "***g教Ah生化楼 i宿舍 ***" << endl;cout << "***j操场 k理工楼 ***" << endl;cout << "***************************************" << endl;cout << "图的所有路径如下：" << endl;for (int i = 0; i<vertexNum; i++) //输出图的所有路径信息{for (int j = 0; j<vertexNum; j++)cout << setw(12) << setiosflags(ios::left) << path[i][j] << " "; //10个字符位置，且左对齐cout << endl;}}void MGraph::Allpathlengths(){cout << "图的所有路径长如下：" << endl;for (int i = 0; i<vertexNum; i++) //输出图的各边长信息{for (int j = 0; j<vertexNum; j++)if (dist[i][j] == 10000)cout << "";elsecout << setw(5) << setiosflags(ios::left) << dist[i][j] << " ";//3个字符位置，且左对齐cout << endl;}}void MGraph::Printshortpath() //结点m到n的最短路径 {cout << "***************************************" << endl;cout << "***景点代号： ***" << endl;cout << "***a校门 b音乐楼 c体育馆***" << endl;cout << "***d医务室 e教B f图书馆***" << endl;cout << "***g教Ah生化楼 i宿舍 ***" << endl;cout << "***j操场 k理工楼 ***" << endl;cout << "***************************************" << endl;cout << "您想了解哪两个点的最短路径？"<<endl;cout << "代号如上图,请分别输入这两个点的代号并以空格分开" << endl;int n, m, i;string ch1, ch2;cin >> ch1 >> ch2; //输入要判定是的顶点，请输入顶点字符。 for (i = 0; i < vertexNum; i++)if (ch1 == a[i].code) n= i;for (i = 0; i<vertexNum; i++)if (a[i].code==ch2) m= i;cout << ch1 << "到" << ch2 << "的最短路径为:" << path[n][m] << endl;cout << ch1 << "到" << ch2 << "的最短路径长为:" << dist[n][m] << endl;system("pause");}void meau(){cout << "***************************************" << endl;cout << "***欢迎使用校园导游咨询系统 ***" << endl;cout << "***输入1执行景点信息查询 ***" << endl;cout << "***输入2执行最短路径查询 ***" << endl;cout << "***输入3执行输出所有路径 ***" << endl;cout << "***输入4执行输出所有路径长度 ***" << endl;cout << "***输入0执行退出系统***" << endl;cout << "***************************************" << endl;}int main(){MGraph m(11, 17);meau();int choice;while (true){cout << "请输入您要执行功能的编号：" ;cin >> choice;switch (choice){case 1:cout << "***************************************" << endl;cout << "***景点编号如下： ***" << endl;cout << "***0校门 1音乐楼 2体育馆***" << endl;cout << "***3医务室 4教B 5图书馆***" << endl;cout << "***6教A7生化楼 8宿舍 ***" << endl;cout << "***9操场 10理工楼***" << endl;cout << "***************************************" << endl;cout << "编号如上图，请输入您要查询景点的编号：";int code;cin >> code;m.Seek(code);break;case 2:m.Floyd();m.Printshortpath();break;case 3:m.Floyd();m.Allpaths();break;case 4:m.Floyd();m.Allpathlengths();break;case 0:return 0;}}return 0;}
仅供参考
