// 获取当前时间
- (NSArray*)getCurrentTime{
    NSDate *date = [NSDate date];
    NSDateFormatter *format = [[NSDateFormatter alloc] init];
    [format setDateFormat:@"yyyyMMdd-HHmmss"];
    //将获取后的本地时间 转换成东八区时间
    format.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT+0800"];
    NSString*strDate = [format stringFromDate:date];
    return [strDate componentsSeparatedByString:@"-"];
}