效果截图:

主要源码:

     
     
          
      
               
           
          
      
                   
          
      
               
           
          
          
      
               
       
                    
        
                         
                         
         
                              
          
                                   
           
                                        
            
             30 minutes
                                        
            
             1 hour
                                        
            
             2 hours
                                        
            
             3 hours
                                        
            
             4 hours
                                        
            
             6 hours
                                        
            
             8 hours
                                        
            
             12 hours
                                        
            
             24 hours
                                    
                               
                                          
                          
                          
          
                               
           
                                    
            
                                         
             
              0
                                         
             
              5
                                         
             
              10
                                         
             
              15
                                         
             
              20
                                         
             
              25
                                         
             
              30
                                         
             
              35
                                         
             
              40
                                         
             
              45
                                         
             
              50
                                         
             
              55
                                     
                                
                                           
                                       
           
                        
            
                             
                             
             
                                  
              
                                       
               
                                            
                
                 1 AM
                                            
                
                 2 AM
                                            
                
                 3 AM
                                            
                
                 4 AM
                                            
                
                 5 AM
                                            
                
                 6 AM
                                            
                
                 7 AM
                                            
                
                 8 AM
                                            
                
                 9 AM
                                            
                
                 10 AM
                                            
                
                 11 AM
                                            
                
                 12 AM
                                            
                
                 1 PM
                                            
                
                 2 PM
                                            
                
                 3 PM
                                            
                
                 4 PM
                                            
                
                 5 PM
                                            
                
                 6 PM
                                            
                
                 7 PM
                                            
                
                 8 PM
                                            
                
                 9 PM
                                            
                
                 10 PM
                                            
                
                 11 PM
                                        
                                   
                              
                             
                             
             
                                  
              
                                       
               
                                            
                
                 0
                                            
                
                 5
                                            
                
                 10
                                            
                
                 15
                                            
                
                 20
                                            
                
                 25
                                            
                
                 30
                                            
                
                 35
                                            
                
                 40
                                            
                
                 45
                                            
                
                 50
                                            
                
                 55
                                        
                                   
                                              
                                          
              
                           
               
                                
                                
                
                                     
                 
                                          
                  
                                               
                   
                    12:00 AM
                                               
                   
                    12:15 AM
                                               
                   
                    12:30 AM
                                               
                   
                    12:45 AM
                                                                           
                   
                    01:00 AM
                                               
                   
                    01:15 AM
                                               
                   
                    01:30 AM
                                               
                   
                    01:45 AM
                                                                           
                   
                    02:00 AM
                                               
                   
                    02:15 AM
                                               
                   
                    02:30 AM
                                               
                   
                    02:45 AM
                                                                           
                   
                    03:00 AM
                                               
                   
                    03:15 AM
                                               
                   
                    03:30 AM
                                               
                   
                    03:45 AM
                                                                           
                   
                    04:00 AM
                                               
                   
                    04:15 AM
                                               
                   
                    04:30 AM
                                               
                   
                    04:45 AM
                                                                           
                   
                    05:00 AM
                                               
                   
                    05:15 AM
                                               
                   
                    05:30 AM
                                               
                   
                    05:45 AM
                                                                           
                   
                    06:00 AM
                                               
                   
                    06:15 AM
                                               
                   
                    06:30 AM
                                               
                   
                    06:45 AM
                                                                           
                   
                    07:00 AM
                                               
                   
                    07:15 AM
                                               
                   
                    07:30 AM
                                               
                   
                    07:45 AM
                                                                           
                   
                    08:00 AM
                                               
                   
                    08:15 AM
                                               
                   
                    08:30 AM
                                               
                   
                    08:45 AM
                                                                           
                   
                    09:00 AM
                                               
                   
                    09:15 AM
                                               
                   
                    09:30 AM
                                               
                   
                    09:45 AM
                                                                           
                   
                    10:00 AM
                                               
                   
                    10:15 AM
                                               
                   
                    10:30 AM
                                               
                   
                    10:45 AM
                                                                           
                   
                    11:00 AM
                                               
                   
                    11:15 AM
                                               
                   
                    11:30 AM
                                               
                   
                    11:45 AM
                                                                           
                   
                    12:00 PM
                                               
                   
                    12:15 PM
                                               
                   
                    12:30 PM
                                               
                   
                    12:45 PM
                                                                           
                   
                    01:00 PM
                                               
                   
                    01:15 PM
                                               
                   
                    01:30 PM
                                               
                   
                    01:45 PM
                                                                           
                   
                    02:00 PM
                                               
                   
                    02:15 PM
                                               
                   
                    02:30 PM
                                               
                   
                    02:45 PM
                                                                           
                   
                    03:00 PM
                                               
                   
                    03:15 PM
                                               
                   
                    03:30 PM
                                               
                   
                    03:45 PM
                                                                           
                   
                    04:00 PM
                                               
                   
                    04:15 PM
                                               
                   
                    04:30 PM
                                               
                   
                    04:45 PM
                                                                           
                   
                    05:00 PM
                                               
                   
                    05:15 PM
                                               
                   
                    05:30 PM
                                               
                   
                    05:45 PM
                                                                           
                   
                    06:00 PM
                                               
                   
                    06:15 PM
                                               
                   
                    06:30 PM
                                               
                   
                    06:45 PM
                                                                           
                   
                    07:00 PM
                                               
                   
                    07:15 PM
                                               
                   
                    07:30 PM
                                               
                   
                    07:45 PM
                                                                           
                   
                    08:00 PM
                                               
                   
                    08:15 PM
                                               
                   
                    08:30 PM
                                               
                   
                    08:45 PM
                                                                           
                   
                    09:00 PM
                                               
                   
                    09:15 PM
                                               
                   
                    09:30 PM
                                               
                   
                    09:45 PM
                                                                           
                   
                    10:00 PM
                                               
                   
                    10:15 PM
                                               
                   
                    10:30 PM
                                               
                   
                    10:45 PM
                                                                           
                   
                    11:00 PM
                                               
                   
                    11:15 PM
                                               
                   
                    11:30 PM
                                               
                   
                    11:45 PM
                                           
                                      
                                                 
                                 
                                 
                 
                                      
                  
                                           
                   
                                                
                                                
                                                
                                                
                                                
                                                
                                                
                                            
                                       
                                                              
                  
                               
                   
                                    
                                    
                    
                                         
                     
                                              
                      
                                                   
                       
                        12:00 AM
                                                   
                       
                        12:15 AM
                                                   
                       
                        12:30 AM
                                                   
                       
                        12:45 AM
                                                                               
                       
                        01:00 AM
                                                   
                       
                        01:15 AM
                                                   
                       
                        01:30 AM
                                                   
                       
                        01:45 AM
                                                                               
                       
                        02:00 AM
                                                   
                       
                        02:15 AM
                                                   
                       
                        02:30 AM
                                                   
                       
                        02:45 AM
                                                                               
                       
                        03:00 AM
                                                   
                       
                        03:15 AM
                                                   
                       
                        03:30 AM
                                                   
                       
                        03:45 AM
                                                                               
                       
                        04:00 AM
                                                   
                       
                        04:15 AM
                                                   
                       
                        04:30 AM
                                                   
                       
                        04:45 AM
                                                                               
                       
                        05:00 AM
                                                   
                       
                        05:15 AM
                                                   
                       
                        05:30 AM
                                                   
                       
                        05:45 AM
                                                                               
                       
                        06:00 AM
                                                   
                       
                        06:15 AM
                                                   
                       
                        06:30 AM
                                                   
                       
                        06:45 AM
                                                                               
                       
                        07:00 AM
                                                   
                       
                        07:15 AM
                                                   
                       
                        07:30 AM
                                                   
                       
                        07:45 AM
                                                                               
                       
                        08:00 AM
                                                   
                       
                        08:15 AM
                                                   
                       
                        08:30 AM
                                                   
                       
                        08:45 AM
                                                                               
                       
                        09:00 AM
                                                   
                       
                        09:15 AM
                                                   
                       
                        09:30 AM
                                                   
                       
                        09:45 AM
                                                                               
                       
                        10:00 AM
                                                   
                       
                        10:15 AM
                                                   
                       
                        10:30 AM
                                                   
                       
                        10:45 AM
                                                                               
                       
                        11:00 AM
                                                   
                       
                        11:15 AM
                                                   
                       
                        11:30 AM
                                                   
                       
                        11:45 AM
                                                                               
                       
                        12:00 PM
                                                   
                       
                        12:15 PM
                                                   
                       
                        12:30 PM
                                                   
                       
                        12:45 PM
                                                                               
                       
                        01:00 PM
                                                   
                       
                        01:15 PM
                                                   
                       
                        01:30 PM
                                                   
                       
                        01:45 PM
                                                                               
                       
                        02:00 PM
                                                   
                       
                        02:15 PM
                                                   
                       
                        02:30 PM
                                                   
                       
                        02:45 PM
                                                                               
                       
                        03:00 PM
                                                   
                       
                        03:15 PM
                                                   
                       
                        03:30 PM
                                                   
                       
                        03:45 PM
                                                                               
                       
                        04:00 PM
                                                   
                       
                        04:15 PM
                                                   
                       
                        04:30 PM
                                                   
                       
                        04:45 PM
                                                                               
                       
                        05:00 PM
                                                   
                       
                        05:15 PM
                                                   
                       
                        05:30 PM
                                                   
                       
                        05:45 PM
                                                                               
                       
                        06:00 PM
                                                   
                       
                        06:15 PM
                                                   
                       
                        06:30 PM
                                                   
                       
                        06:45 PM
                                                                               
                       
                        07:00 PM
                                                   
                       
                        07:15 PM
                                                   
                       
                        07:30 PM
                                                   
                       
                        07:45 PM
                                                                               
                       
                        08:00 PM
                                                   
                       
                        08:15 PM
                                                   
                       
                        08:30 PM
                                                   
                       
                        08:45 PM
                                                                               
                       
                        09:00 PM
                                                   
                       
                        09:15 PM
                                                   
                       
                        09:30 PM
                                                   
                       
                        09:45 PM
                                                                               
                       
                        10:00 PM
                                                   
                       
                        10:15 PM
                                                   
                       
                        10:30 PM
                                                   
                       
                        10:45 PM
                                                                               
                       
                        11:00 PM
                                                   
                       
                        11:15 PM
                                                   
                       
                        11:30 PM
                                                   
                       
                        11:45 PM
                                               
                                          
                                                     
                                     
                                     
                     
                                          
                      
                                               
                       
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                
                                           
                                                      
                                                  
                          
                          
                      
                               
                               
                       
                                    
                        
                                         
                         
                                              
                          
                           30 minutes
                                              
                          
                           1 hour
                                              
                          
                           2 hours
                                              
                          
                           3 hours
                                              
                          
                           4 hours
                                              
                          
                           6 hours
                                              
                          
                           8 hours
                                              
                          
                           12 hours
                                              
                          
                           24 hours
                                          
                                     
                                    

说明:

代码中使用的自定义DropDownListEx组件见本人的另一篇博客: