iOS开发根据数字获得月份

根据数字获得月份比如1--1月/January

-(NSString*)MonthNameString:(NSInteger )monthNumber
{
    NSDateFormatter *formate = [NSDateFormatter new];

    NSArray *monthNames = [formate standaloneMonthSymbols];

    NSString *monthName = [monthNames objectAtIndex:(monthNumber - 1)];

    return monthName;
}