iOS里怎么获取某个月的某一天 利用java.util.Timer实现主业务中:Timer timer=new Timer();timer.schedule(new MyTask(),Date);另外写个类继承TimerTask,实现RUN方法,schedule启动后,一旦满足条件则调用此RUN方法class MyTask extends TimerTask{public void run(){do your work}}schedule有很多重载方法,你可以查下
IOS 怎样获取当前一年的天数 #pragma mark-获取某个日期所在年份的天数(int)getNumberOfDaysOneYear:(NSDate*)date{NSCalendar*calender=[NSCalendar currentCalendar];NSRange range=[calender rangeOfUnit:NSDayCalendarUnitinUnit:NSYearCalendarUnitforDate:date];return range.length;}
ios怎么获取两个时间戳的时间间隔 timestamp如果相减,其实比date更方便。秒,时,分。都算好了。SQL>;select*from hao;A B28-APR-09 04.56.31.000000 AM 28-APR-09 04.57.14.000000 AMSQL>;select2 b-a,3 substr((b-a),instr((b-a),' ')+7,2)seconds,substr((b-a),instr((b-a),' ')+4,2)minutes,substr((b-a),instr((b-a),' ')+1,2)minutes,trunc(to_number(substr((b-a),1,instr(b-a,' '))))days,trunc(to_number(substr((b-a),1,instr(b-a,' ')))/7)weeksfrom hao;4 5 6 7 8B-A SECOND MINUTE MINUTE DAYS WEEKS000000000 00:00:43.000000 43 00 00 0 0