C编程: Creating a Program to Pull Latitude and Longitude from a typedef struct

Question

所以我的类(class)有一个项目，我需要编写一个程序，用户在其中输入一个城市，然后该程序将从 typedef 结构中查找该城市，然后打印该城市的纬度和经度坐标。我的想法是将城市名称作为输入，然后以某种方式将城市名称与结构中的城市名称(可能是指针？)进行比较，然后在城市匹配时获取纬度和经度。我认为我需要创建一个循环程序来读取数据，直到找到匹配项。您能告诉我我是否走在正确的道路上，或者您将如何编写该程序？如果有人想尝试的话，我附上了该结构的一小部分(完整的有 200 个城市)。

  #define MAX_CITY_LEN   35

   typedef struct { 
            char  name[MAX_CITY_LEN];
            float latitude;
            float longitude;
           } PLACE_T;

   PLACE_T places[] =
     {{"Aberdeen,Scotland",57.15,-2.15},
      {"Adelaide,Australia",-34.92,138.6},
      {"Albany,NY,USA",42.67,-73.75},
      {"Albuquerque,NM,USA",35.08,-106.65},
      {"Algiers,Algeria",36.83,3.0},
      {"Amarillo,TX,USA",35.18,-101.83},

谢谢，亚历克斯

Answer 1

这样做:

 typedef struct { 
            char  name[MAX_CITY_LEN];
            float latitude;
            float longitude;
 } PLACE_T;

 PLACE_T places[] ={
      {"India,kochi",57.15,-2.15},
      {"Adelaide,Australia",-34.92,138.6},
      {"Albany,NY,USA",42.67,-73.75},
      {"Albuquerque,NM,USA",35.08,-106.65},
      {"Algiers,Algeria",36.83,3.0},
      {"Amarillo,TX,USA",35.18,-101.83},
   };

int main(){
   int j;
  int found=0;
  char city[MAX_CITY_LEN];
  printf("enter city name:");
  fgets(city,MAX_CITY_LEN,stdin);
  city[strlen(city)-1]='\0';
  int citySize=(sizeof(places)/sizeof(places[0]));
  for(j=0;j<citySize;j++){
     if(strcmp(city,places[j].name)==0){
        found=1;                                
        printf("lat = %f, long = %f",places[j].latitude,places[j].longitude); 
        break;                              
     }
   }
   if(!found)
     printf("City not found");

    return 0;

}