addvex.cpp

次界面好用但是也可能有许多不足还希望有贤人志士指点迷津！

#include"traffic.h"

step Addvex(ALGraph &G)
 {
   CityName add;
   openfile("head");
   if(G.vexnum == MAX_VERTEX_NUM)
    {
     printf("Full !!\n");
     return NEXTSTEP;
    }
   printf("Please input the station name:\n");
   scanf("%s",add);
   getchar();
   if(LocateVex(G,add) != -1)
   {
    printf("The station is exist!!");
    }
    else 
    {
     strcpy(G.vertices[G.vexnum].data,add);
     G.vertices[G.vexnum].firstarc = NULL;
     G.vexnum ++;
     printf("%s station add success!!\n",add);
    }
  return NEXTSTEP;
 }