interval

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have this decorator: def timed_out(timeout): def decorate(f): if not hasattr(signal, "SIGALRM"): return f def handler(signum, frame): raise TimedOutExc() @functools.wraps(f) def new_f(*args, **kwargs): old = signal.signal(signal.SIGALRM, handler) signal.alarm(timeout) try: result = f(*args, **kwargs) finally: signal.signal(signal.SIGALRM, old) signal.alarm(0) return result new_f.func_name = f.func_name return new_f return decorate The code only does anything on linux, though, as on windows, there is no SIGALRM . What would be the simplest

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am developing for IE10+ so i decided not to use JQuery. I write custom javascript function to Select, Fadein, FadeOut etc and it is working fine. but i like to use the Function in JQuery Style (Object.fadeIn(), Object.FadeOut() etc). Instead of JQuery Selector i use this. function _(el){ return document.getElementById(el); } When i need to select a Dom object i use this. var myButton = _("button"); When i need to fadeIn Or fadeOut any object i use this. function fade(type, ms, el) { var isIn = type === 'in', opacity = isIn ? 0 : 1,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I tried this implementation Full Calendar Implementation . $ ( "#available_classes_calendar" ). fullCalendar ({ header : { left : 'prev,next' , center : 'title' }, defaultView : 'agendaWeek' , views :{ agenda :{ allDaySlot : false , minTime : "06:30:00" , maxTime : "24:00:00" , slotDuration : "00:60:00" } } }); In this all-day column should be start from 6:30am and interval slot should be 1 hour. So all-days column should look like: 6:30 am 7:30 am 8:30 am . . . 11:30 pm I tried lots of solution but not able to achieve this. Please

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I want to set an individual data interval for each slide on my bootstrap 4 carousel. I have tried a few other snippets of javascript, however they don't seem to work with my code, such as Bootstrap 4 Carousel-stack overflow Could anyone please suggest something, any help is appreciated. #top-bootstrap-slider{ width : 80 %; margin : auto ; background : rgb ( 15 , 36 , 62 ); color : white ; height : 30px ; margin - top : 0 ; overflow : hidden ; font - size : 10px ; } . carousel - item { display : flex ; align - items : center ;

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have this working implementation af a angularJS app which fetches some links from an URL and paint them. However the links on the URL are being updated constantly, I would like to update periodcially this $scope.listlinks, let say every 10 seconds. I tried playing with setInterval with no luck. Javascript var App = angular.module('App', []); App.controller('ListLinksCtrl', function get($scope, $http ) { $http.get('http://example_url.com/my_changing_links_json').then( function(res){$scope.listlinks = res.data;}); } ); HTML {{ singlelink

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hi i have table with datetime variable. I was wondering if i can somehow change the datetime column to add 1O minutes to stored date. Perhaps some trigger has to be involved. Thanks for help 回答1: I like the INTERVAL expr unit notation. It feels more readable to me: SELECT NOW(), NOW() + INTERVAL 10 MINUTE; +--------------------------------+-------------------------------+ | NOW() | NOW() + INTERVAL 10 MINUTE | +--------------------------------+-------------------------------+ | August, 12 2013 14:12:56+0000 | August, 12 2013 14:22:56+0000 |

Oracle Job的使用(定时执行) oracle中的job能为你做的就是在你规定的时间格式里执行存储过程，定时执行一个任务 。下面是一个小案例，定时每15分钟向一张表插入一条数据 һ -- Create table create table A8 ( a1 VARCHAR2 ( 500 ) ) tablespace DSP_DATA pctfree 10 initrans 1 maxtrans 255 storage ( initial 64K next 1M minextents 1 maxextents unlimited ); create or replace procedure proc_add_test as begin insert into a8 values (to_char(sysdate, ' yyyy-mm-dd hh:mi ' )); /* 向测试表插入数据 */ commit ; end ; declare job number ; BEGIN DBMS_JOB.SUBMIT( JOB => job, /* 自动生成JOB_ID */ WHAT => ' proc_add_test; ' , /* 需要执行的存储过程名称或SQL语句 */ NEXT_DATE => sysdate + 3 / ( 24 * 60 ), /* 初次执行时间-下一个3分钟

给出一个区间的集合，请合并所有重叠的区间。 示例 1: 输入: [[1,3],[2,6],[8,10],[15,18]] 输出: [[1,6],[8,10],[15,18]] 解释: 区间 [1,3] 和 [2,6] 重叠, 将它们合并为 [1,6]. 示例 2: 输入: [[1,4],[4,5]] 输出: [[1,5]] 解释: 区间 [1,4] 和 [4,5] 可被视为重叠区间。 是否重叠只需要判断i1.end 与 i2.start即可，也就是说我们只需要对数组按照i.start升序排列即可，判断i2.start>i1.end是否满足，满足则不重叠，反之重叠。 /** * Definition for an interval. * public class Interval { * int start; * int end; * Interval() { start = 0; end = 0; } * Interval(int s, int e) { start = s; end = e; } * } */ class Solution { public List<Interval> merge (List<Interval> intervals) { List<Interval> res = new ArrayList<>(); if (intervals.size()< 1

要看这一节。。。6、kafka的安装 5.1三台机器安装zookeeper 注意：安装zookeeper之前一定要确保三台机器时钟同步 */1 * * * * /usr/sbin/ntpdate us.pool.ntp.org; 三台机器配置文件修改 tickTime=2000 initLimit=10 syncLimit=5 dataDir=/export/servers/zookeeper-3.4.9/zkData/data dataLogDir=/export/servers/zookeeper-3.4.9/zkData/log clientPort=2181 autopurge.purgeInterval=1 autopurge.snapRetainCount=3 server.1=node01:2888:3888 server.2=node02:2888:3888 server.3=node03:2888:3888 三台机器分别在/export/servers/zookeeper-3.4.9/zkData/data 目录下添加文件myid,并编辑每个文件中的内容 node01 机器myid内容为1 node02机器myid内容为 node03机器myid内容为3 三台机器启动zookeeper 5.2 三台机器安装kafka集群 5.2.1 下载kafka安装压缩包

Python3 多进程编程(Multiprocess programming) 为什么使用多进程 具体用法 Python多线程的通信 进程对列Queue 生产者消费者问题 JoinableQueue Queue实例 管道Pipe multiprocessing 模块来实现的，和多线程的 threading.Thread 类似，利用 multiprocessing.Process 来创建一个进程对象。进程对象的方法和线程对象的方法类似，也有start(), join()等。 直接启用 代码实例 import multiprocessing from time import sleep def clock ( interval ): i = 0 while i < 5 : i += 1 print ( f "Run >>> {i}" ) sleep ( interval ) print ( "Ending!" ) if __name__ == '__main__' : p = multiprocessing . Process ( target = clock , args = ( 1 ,)) p . start () p . join () 运行结果 Run >>> 1 Run >>> 2 Run >>> 3 Run >>> 4 Run >>> 5 Ending ! 继承自