大约有 49,000 项符合查询结果(耗时:0.1854秒) [XML]

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Cron jobs and random times, within given hours

I need the ability to run a PHP script 20 times a day at completely random times. I also want it to run only between 9am - 11pm. ...
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Why does SIGPIPE exist?

From my understanding, SIGPIPE can only occur as the result of a write() , which can (and does) return -1 and set errno to EPIPE ... So why do we have the extra overhead of a signal? Every time I work with pipes I ignore SIGPIPE and have never felt any pain as a result, am I missing somethin...
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Flask vs webapp2 for Google App Engine

I'm starting new Google App Engine application and currently considering two frameworks: Flask and webapp2 . I'm rather satisfied with built-in webapp framework that I've used for my previous App Engine application, so I think webapp2 will be even better and I won't have any problems with it. ...
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Deploy a project using Git push

... I found this script on this site and it seems to work quite well. Copy over your .git directory to your web server On your local copy, modify your .git/config file and add your web server as a remote: [remote "production"] url = username@webserver:/pa...
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How to delete multiple values from a vector?

I have a vector like: a = c(1:10) and I need to remove multiple values, like: 2, 3, 5 8 Answers ...
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Wget output document and headers to STDOUT

I'm trying to output document body and its headers to stdout with wget by wget -S -O - http://google.com 5 Answers ...
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?

I've already read the question and answers to What design decisions would favour Scala's Actors instead of JMS? . 3 Answer...
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Android destroying activities, killing processes

Hi I'm wondering how Android is managing memory and I can't find precise answer anywhere. Let's assume I have an application with 5 activities on current activity stack (4 are stopped and 1 is resumed), there is no service connected. I press HOME button so that all of my activities are stopped. I st...
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How to calculate the number of days between two dates? [duplicate]

... I tested this with 2015-02-1 to 2015-03-01 and got 31 days. There's something wrong here... EDIT: Okay yeah.. javascript months are from 0-12 so if you're getting the input from a jquery datepicker or a regular normal date, subtract 1 form the month ...
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What does the “__block” keyword mean?

...eated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these variables don't show outside the block. When they are marked with __block, the modifications done inside the block are also visib...