iOS，NSPredicate筛选NsmutableArray，

 NSString *filterString = searchController.searchBar.text;

    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self.name  contains [c] %@", filterString];

    self.searchArray = [NSMutableArray arrayWithArray:[self.dataArray filteredArrayUsingPredicate:predicate]];