#include
#include
#include
#include
using namespace std;
typedef struct Infor
{
char name[10]; char infor[100];
}Infor;
typedef struct
{
int arcs[50][50];
int vexnum,arcnum;
}Mgraph;
typedef struct
{
char password[6]; char n_password[6];
}PassWord;
int LocateVex(Mgraph &G,char a[10])
{
for(int i=0;i<G.vexnum;i++)
{ if(strcmp(G.vexs[i].name,a)==0)
{ return i; }
}
cout<<"输入有误!"<<endl; return -1;
}
void Creategraph(Mgraph &G,PassWord &pw)
{
ifstream inFile("graph.txt");
char v1[10],v2[10]; int i,j,k,w; inFile>>G.vexnum>>G.arcnum;
for(i=0;i
{
inFile>>G.vexs[i].name;
inFile>>G.vexs[i].infor;
}
for(i=0;i
{
for(int j=0;j
{
G.arcs[i][j]=10000;
}
}
for(k=0;k
{
inFile>>v1>>v2>>w;
i=LocateVex(G,v1);
j=LocateVex(G,v2); if(i==j)
{
G.arcs[i][j]=0;
}
else
{
G.arcs[i][j]=w;
G.arcs[j][i]=G.arcs[i][j];
}
}
for(int m=0;m
{
inFile>>pw.password[m];
}
}
void infor(Mgraph &G)
{
char a[10];
int b=1;
while(b)
{
for(int i=0;i
{
cout
}
cout
cin>>a;
for(i=0;i<G.vexnum;i++)
{
if(strcmp(G.vexs[i].name,a)==0)
{
cout<<G.vexs[i].infor<<endl;
b=0;
}
}
if(b!=0)
{
cout<<"输入错误请重新输入！！"<
}
cout
cin>>b;
}
}
void ShortestPath (Mgraph G)//最短路径
{
char a[10],d[10];
int b=1,i,j,v,v0,w;
int Dist[100],S[100],Path[100];
int n=G.vexnum;
while(b)
{
for(i=0;i
{
cout
}
for(i=0;i
{
Dist[i]=9999;
S[i]=0;
Path[i]=-1;
}
cout
cin>>a;
cin>>d;
v0=LocateVex(G,a);
j=LocateVex(G,d);
for(v=0;v
{
S[v]=0;
Dist[v]=G.arcs[v0][v];
if(Dist[v]
Path[v]=v0;
else
Path[v]=-1;//v无前趋
}
Dist[v0]=0;
S[v0]=1;
for(i=1;i
{
int min=9999;
for(w=0;w
if(!S[w]&&Dist[w]
{
v=w;
min=Dist[w];
}//w顶点离v1顶点更近
S[v]=1;
for(w=0;w
if(!S[w]&&(Dist[v]+G.arcs[v][w]
{
Dist[w]=Dist[v]+G.arcs[v][w];
Path[w]=v;
}//end if
}//end for
cout
cout
cout
int f=Path[j],e[100];
i=0;
while(f!=-1)
{
e[i]=f;
f=Path[f];
i++;
}
for(v=i-1;v>=0;v--)
{
cout<";
}
cout<
cout
cin>>b;
}
}
void reception(Mgraph &G)//前台
{
int n;
while(1)
{
system("cls");//清屏
cout<<"*********************欢迎使用前台系统************************"<
cout
cout
cout
cin>>n;
switch(n)
{
case 1:
infor(G);
break;
case 2:
ShortestPath (G);
break;
case 0:
return;
break;
default:
cout<<"您的输入有误,任意键继续..."<<endl;
getch();
}
}
}
void WriteTXT(Mgraph G,PassWord pw)//将更改后的信息写如graph.txt
{
int i,j;
ofstream outFile("graph.txt");
if(!outFile)
{
cerr<<"cannot open my.txt"<<endl;
exit(1);
}
outFile<<G.vexnum<<" "<<G.arcnum<<endl;
for(i=0;i<G.vexnum;i++)
{
outFile<<G.vexs[i].name<<" "<<G.vexs[i].infor<<endl;
}
for(i=0;i
{
for(j=0;j
{
if(G.arcs[i][j]!=10000)
{
outFile
G.arcs[j][i]=10000;
}
}
}
Creategraph(G,pw);
}
void ChangeP(Mgraph &G,PassWord pw)//修改一个已有景点的相关信息
{
char a[10];
int b=1,i;
while(b)
{
for(i=0;i
{
cout
}
cout
cin>>a;
for(i=0;i
{
if(strcmp(a,G.vexs[i].name)==0)
{
cout
cout
cin>>G.vexs[i].infor;
cout<<"修改成功!!!!"<
b=0;
}
}
if(b!=0)
{
cout
}
cout
int c;
cin>>c;
if(c==1)
{
WriteTXT(G,pw);
}
cout<<"返回后台系统按0,继续修改按1"<
cin>>b;
}
}
void deleteP(Mgraph &G,PassWord pw)//删除景点信息
{
char a[10];
int b=1,i,j,k;
while(b)
{
for(i=0;i
{
cout
}
cout
cin>>a;
for(i=0;i
{
if(strcmp(a,G.vexs[i].name)==0)
{
for(j=i;j
{
G.vexs[j]=G.vexs[j+1];
for(k=0;k
G.arcs[k][j]=G.arcs[k][j+1];
}
for(j=i;j
{
for(k=0;k
G.arcs[j][k]=G.arcs[j+1][k];
}
G.vexnum--;
G.arcnum=0;
for(i=0;i
{
for(j=0;j
{
if(G.arcs[i][j]!=10000)
G.arcnum++;
}
}
G.arcnum=G.arcnum/2;
b=0;
cout
}
}
if(b!=0)
{
cout
}
cout
int c;
cin>>c;
if(c==1)
{
WriteTXT(G,pw);
}
cout<<"返回后台系统按0,继续删除按1"<
cin>>b;
}
}
void deleteL(Mgraph &G,PassWord pw)//删除路径
{
char a[10],d[10];
int b=1,i,j;
while(b)
{
for(i=0;i
{
for(j=0;j
{
if(G.arcs[i][j]!=10000)
{
cout
}
}
}
cout
cin>>a;
cin>>d;
i=LocateVex(G,a);
j=LocateVex(G,d);
if(G.arcs[i][j]!=10000)
{
G.arcs[i][j]=10000;
G.arcs[j][i]=10000;
b=0;
cout<<"删除成功！！"<
G.arcnum--;
}
if(b!=0)
{
cout
}
cout
int c;
cin>>c;
if(c==1)
{
WriteTXT(G,pw);
}
cout<<"返回后台系统按0,继续删除按1"<
cin>>b;
}
}
///////////////////////////////////选作//////////////////////////
void Add(Mgraph &G,PassWord &pw)//增加景点
{
cout<<"请输入景点名称："<
cin>>G.vexs[G.vexnum].name;
cout<<"请输入景点信息："<
cin>>G.vexs[G.vexnum].infor;
for(int i=0;i<G.vexnum;i++)
G.arcs[G.vexnum][i]=10000;
for(i=0;i<G.vexnum;i++)
G.arcs[i][G.vexnum]=10000;
G.arcs[G.vexnum][G.vexnum]=0;
G.vexnum++;
cout<<"增加成功!"<<endl;
cout<<endl;
WriteTXT(G,pw);
system("pause");system("cls");
}
////////////////////////////////////////////////
bool password(PassWord &pw)//判断密码
{
char p[6];
cout<<"请输入6位密码："<<endl;
for(int e=0;e<6;e++)
{
p[e]=getch();
cout<<"*";
cout.flush();
}
cout<<endl;
for(e=0;e<6;e++)
{
if(p[e]!=pw.password[e])return false;
}
cout<<endl;
return true;
}
void backstage(Mgraph &G,PassWord pw)//后台函数
{
int n;
while(1)
{
system("cls");
cout<<"*********************欢迎使用后台系统************************"<
cout
cout
cout
cout
cout
cin>>n;
switch(n)
{
case 1:
ChangeP(G,pw);
break;
case 2:
deleteP(G,pw);
break;
case 3:
deleteL(G,pw);
break;
case 4:
Add(G,pw);
break;
case 0:
return;
break;
default:
cout<<"您的输入有误,任意键继续..."<<endl;
getch();
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////////
void main()//主函数
{
Mgraph G;
PassWord pw;
Creategraph(G,pw);
int n,m=1;
while(m)
{
system("cls");
cout<<"*********************欢迎使用北林游览系统************************"<
cout
cout
cout
cin>>n;
switch(n)
{
case 1:
reception(G);
break;
case 2:
if(password(pw)==true)
{
backstage(G,pw);//后台函数，并调用
}
else
cout<<"密码输入错误！！";
break;
case 0:
m=0;
break;
default:
cout<<"您的输入有误,任意键继续..."<<endl;
getch();
}
}
}
