Problem DescriptionSakura has a very magical tool to paint walls. One day, kAc asked Sakura to paint a wall that looks like an M×N matrix. The wall ha...
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其他好文 时间:
2015-09-08 19:57:26
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207
开闭原则【Open Close Principle】定义
software entities like classes, modules and functions should be open for extension but closed for modifications.
一个软件实体应该对扩展开放,对修改关闭。
什么是开闭原则闭原则的定义已经非常明...
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其他好文 时间:
2015-09-08 12:35:45
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255
mdb拆分数据清理zg/ngboss4,123@ngtst02select 'drop table ' ||TABLE_NAME ||';' from all_tables where table_name LIKE 'FYL_%';入库详单清理jf/jf@ngtstdb196select * fr...
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数据库 时间:
2015-09-08 12:26:04
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166
How do you generate complementary PWM Outputs?I would like to generate complementary PWM Outputs with adjustable dead time.According to the STM32F401R...
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其他好文 时间:
2015-09-08 09:29:59
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379
Given a non-negative integernum, repeatedly add all its digits until the result has only one digit.For example:Givennum = 38, the process is like:3 + ...
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其他好文 时间:
2015-09-08 06:58:45
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172
spark 恢复机制使用的监控 https://mmonit.com/monit/ Up and running in 15 minutes! With all features needed for system monitoring and error recovery. It‘s like having a watchdog with a toolbox on you...
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其他好文 时间:
2015-09-07 18:06:11
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130
1、输入mysql -uroot 进入命令行模式,2、输入"show variables like '%sock%';"查看sock文件所在位置如:3、配置客户端(以navicat为例)(1)打开mac 下的navicat(2)建立相应的连接,点击设置连接属性。(3)点击advanced->(4)u...
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其他好文 时间:
2015-09-07 18:05:29
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713
Nginx("enginex")是一个高性能的HTTP和反向代理服务器,也是一个IMAP/POP3/SMTP服务器Nginx是一款轻量级的Web服务器/反向代理服务器及电子邮件(IMAP/POP3)代理服务器,并在一个BSD-like协议下发行,其特点是占有内存少,并发能力强,事实上nginx的并发能力确实在同类型的网页..
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Web程序 时间:
2015-09-07 16:51:43
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360
查看mysql语句运行时间的2种方法 show profiles timestampdiff来查看测试时间 http://blog.51yip.com/mysql/968.html 开启log日志 show variables like "%log%"; set glabel general_log=1 找查询比较缓慢的sql,...
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数据库 时间:
2015-09-07 15:39:17
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224
Hello,i would have 2 unigui app.the first app is a simple authentification app and second will be the main app.I'd like to havethe following scenario....
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其他好文 时间:
2015-09-07 12:54:26
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893