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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...抛出的ZeroDivisionError异常被打印出来了。开发库时,清理资源,关闭文件等等操作,都可以放在__exit__方法当中。
Thus, Python’s with is a nifty construct that makes code a little less verbose and makes cleaning up during exceptions a bit easier.
因此,...
IRXmitter红外发射器扩展 · App Inventor 2 中文网
...orOccurred事件
用户反馈: 使用事件提供视觉或听觉反馈
资源管理: 避免同时进行多个传输操作
兼容性考虑
检查设备是否支持红外发射
验证载波频率兼容性
测试不同品牌设备的兼容性
本文档基于Ulli的...
how to implement regions/code collapse in javascript
...ry here explains it and this MSDN question.
You have to use Visual Studio 2003/2005/2008 Macros.
Copy + Paste from Blog entry for fidelity sake:
Open Macro Explorer
Create a New Macro
Name it OutlineRegions
Click Edit macro and paste the following VB code:
Option Strict Off
Option Explicit Of...
Function to convert column number to letter?
...in an invalid column number. It works even if someone is still using Excel 2003. If you need that kind of exception, go with the range method. Otherwise, kudos to robartsd.
– Engineer Toast
Feb 17 '15 at 22:10
...
SQL: IF clause within WHERE clause
... method you used which may help people. weblogs.sqlteam.com/jeffs/archive/2003/11/14/513.aspx
– Rich
Sep 6 '11 at 14:16
...
Fastest way to determine if an integer's square root is an integer
...41,1773,359,651,
961,323,1193,197,175,1651,441,235,1567,1885,1481,1947,881,2003,217,843,
1023,1027,745,1019,913,717,1031,1621,1503,867,1015,1115,79,1683,793,1035,
1089,1731,297,1861,2001,1011,1593,619,1439,477,585,283,1039,1363,1369,1227,
895,1661,151,645,1007,1357,121,1237,1375,1821,1911,549,1999,1...
为何谷歌不可复制? - 资讯 - 清泛网 - 专注C/C++及内核技术
...没有什么前途,就应该以最快的速度喊停,以免浪费更多资源,产生更多机会成本。”上述看法来自于两位作者从管理层的角度去判断,而站在技术的角度来说,谷歌的诸多服务和产品都是基于互联网,不存在物理世界中的固定...
Remove last character from C++ string
...aybe I have a non-standard library in some compiler somewhere (between VC++2003, VC++2008, MinGW GCC3 MinGW GCC 4 and Linux GCC 4, you do get a few differences). More likely, I'm just getting confused with other types.
– Steve314
Feb 22 '10 at 14:31
...
简单谈谈软件配置管理 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...更改得到实施.
c)QA:配置管理活动审查
2、配置管理的资源
a)配置库的服务器
b)配置库工具
c)配置库的访问方式
3、识别配置项
对于配置项,可以给出一个比较简单的定义,即软件过程的输出信息可以分为4个主要类别...
TaifunPlayer 扩展(Audio Player):音频播放器扩展,支持流媒体播放控制 ...
...
及时释放:不再需要播放时使用 Stop 函数释放资源
状态检查:避免频繁调用状态检查函数
合理跳转:使用 SeekTo 而不是连续的 Forward/Backward
循环注意:循环播放可能增加电池消耗
技术说明
...
