NSArray 排序
1 //sortedArray :已排序数组 array :待排序数组 2 3 NSArray *sortedArray = [array sortedArrayUsingComparator: ^(id obj1, id obj2) { 4 if ([obj1 integerValue] > [obj2 integerValue]) { 5 return (NSComparisonResult)NSOrderedDescending; 6 } 7 if ([obj1 integerValue] < [obj2 integerValue]) { 8 return (NSComparisonResult)NSOrderedAscending; 9 } 10 return (NSComparisonResult)NSOrderedSame; 11 }]; 12