@TOC
//获取当前时间戳
-(NSString *) getTimeNow{
NSDateFormatter *formatter = [[NSDateFormatter alloc] init] ;
[formatter setDateStyle:NSDateFormatterMediumStyle];
[formatter setTimeStyle:NSDateFormatterShortStyle];
[formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"]; // 设置想要的格式,hh与HH的区别:分别表示12小时制,24小时制
//设置时区,这一点对时间的处理很重要
NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Shanghai"];
[formatter setTimeZone:timeZone];
NSDate *dateNow = [NSDate date];
NSString *timeStamp = [NSString stringWithFormat:@"%ld", (long)[dateNow timeIntervalSince1970]];
return timeStamp;
}