部分代码 完整项目见附件

1. -(int)queryNumber:(NSArray*)aData value:(NSInteger)inter{
   
2.     NSInteger left = 0;
   
3.     NSInteger right = [aData count];
   
4.     while (left <= right){
   
5.         NSInteger mid = (left+right)/2;
   
6.         if ([[aData objectAtIndex:mid] intValue] < inter){
   
7.             left = mid+1;
   
8.         }
   
9.         else if ([[aData objectAtIndex:mid] intValue] > inter){
   
10.             right = mid - 1;
    
11.         }
    
12.         else{
    
13.             NSLog(@"We had found the number %d in array",[[aData objectAtIndex:mid] intValue]);
    
14.             return;
    
15.         }
    
16.     }
    
17.     NSLog(@"We couldn't found the number %d in array",inter);
    
18.     return;
    
19. }

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部分代码 完整项目见附件

1. -(int)queryNumber:(NSArray*)aData value:(NSInteger)inter{
   
2.     NSInteger left = 0;
   
3.     NSInteger right = [aData count];
   
4.     while (left <= right){
   
5.         NSInteger mid = (left+right)/2;
   
6.         if ([[aData objectAtIndex:mid] intValue] < inter){
   
7.             left = mid+1;
   
8.         }
   
9.         else if ([[aData objectAtIndex:mid] intValue] > inter){
   
10.             right = mid - 1;
    
11.         }
    
12.         else{
    
13.             NSLog(@"We had found the number %d in array",[[aData objectAtIndex:mid] intValue]);
    
14.             return;
    
15.         }
    
16.     }
    
17.     NSLog(@"We couldn't found the number %d in array",inter);
    
18.     return;
    
19. }

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