예제 #1
0
 public static ProductSaleTrendManager GetInstance()
 {
     if (_instance == null)
     {
         _instance = new ProductSaleTrendManager();
     }
     return(_instance);
 }
예제 #2
0
 public static ProductSaleTrendManager GetInstance()
 {
     if ( _instance == null )
     {
         _instance = new ProductSaleTrendManager();
     }
     return _instance;
 }