//獲取當(dāng)前的時(shí)間
+(NSString*)getCurrentTimes{
 NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
 // ----------設(shè)置你想要的格式,hh與HH的區(qū)別:分別表示12小時(shí)制,24小時(shí)制
 [formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
 //現(xiàn)在時(shí)間,你可以輸出來(lái)看下是什么格式
 NSDate *datenow = [NSDate date];
 //----------將nsdate按formatter格式轉(zhuǎn)成nsstring
 NSString *currentTimeString = [formatter stringFromDate:datenow];
 NSLog(@"currentTimeString = %@",currentTimeString);
 return currentTimeString;
}

+(NSString *)getNowTimeTimestamp{
 NSDateFormatter *formatter = [[NSDateFormatter alloc] init] ;
 [formatter setDateStyle:NSDateFormatterMediumStyle];
 [formatter setTimeStyle:NSDateFormatterShortStyle];
 [formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"]; // ----------設(shè)置你想要的格式,hh與HH的區(qū)別:分別表示12小時(shí)制,24小時(shí)制
 //設(shè)置時(shí)區(qū),這個(gè)對(duì)于時(shí)間的處理有時(shí)很重要
 NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Shanghai"];
 [formatter setTimeZone:timeZone];
 NSDate *datenow = [NSDate date];//現(xiàn)在時(shí)間,你可以輸出來(lái)看下是什么格式
 NSString *timeSp = [NSString stringWithFormat:@"%ld", (long)[datenow timeIntervalSince1970]];
 return timeSp;
}
+(NSString *)getNowTimeTimestamp2{
 NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];
 NSTimeInterval a=[dat timeIntervalSince1970];
 NSString*timeString = [NSString stringWithFormat:@"%0.f", a];//轉(zhuǎn)為字符型
 ;
return timeString;
}
 //獲取當(dāng)前時(shí)間戳 （以毫秒為單位）
+(NSString *)getNowTimeTimestamp3{
 NSDateFormatter *formatter = [[NSDateFormatter alloc] init] ;
 [formatter setDateStyle:NSDateFormatterMediumStyle];
 [formatter setTimeStyle:NSDateFormatterShortStyle];
 [formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss SSS"]; // ----------設(shè)置你想要的格式,hh與HH的區(qū)別:分別表示12小時(shí)制,24小時(shí)制
 //設(shè)置時(shí)區(qū),這個(gè)對(duì)于時(shí)間的處理有時(shí)很重要
 NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Shanghai"];
 [formatter setTimeZone:timeZone];
 NSDate *datenow = [NSDate date];//現(xiàn)在時(shí)間,你可以輸出來(lái)看下是什么格式
 NSString *timeSp = [NSString stringWithFormat:@"%ld", (long)[datenow timeIntervalSince1970]*1000];
 return timeSp;
}