NSDateFormatter用法

-(NSString *)turnTimeWith:(NSString *)time
{
    NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
    formatter.timeZone = [NSTimeZone timeZoneWithName:@"shanghai"];
    [formatter setDateStyle:NSDateFormatterMediumStyle];
    [formatter setTimeStyle:NSDateFormatterShortStyle];
    [formatter setDateFormat:@"YYYY年MM月dd日"];
    
    
    NSDate* date = [NSDate dateWithTimeIntervalSince1970:[time floatValue]/1000];
    
    
    NSString* dateString = [formatter stringFromDate:date];
    return dateString;
}