notification.fireDate=[now dateByAddingTimeInterval:1]; //触发通知的时间        notification.repeatInterval=0; //循环次数，kCFCalendarUnitWeekday一周一次        notification.timeZone=[NSTimeZone defaultTimeZone];        notification.soundName = UILocalNotificationDefaultSoundName;        notification.alertBody=msg;        notification.alertAction = @"打开";  //提示框按钮        notification.hasAction = YES; //是否显示额外的按钮，为no时alertAction消失        notification.applicationIconBadgeNumber = 0; //设置app图标右上角的数字        [[UIApplication sharedApplication] scheduleLocalNotification:notification];