//selectedText 搜索的词
UIReferenceLibraryViewController*dictVC = [[[UIReferenceLibraryViewControlleralloc]initWithTerm:selectedText]autorelease];
[self.viewControllerpresentViewController:dictVCanimated:YEScompletion:nil];
//selectedText 搜索的词
UIReferenceLibraryViewController*dictVC = [[[UIReferenceLibraryViewControlleralloc]initWithTerm:selectedText]autorelease];
[self.viewControllerpresentViewController:dictVCanimated:YEScompletion:nil];