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What does Python's eval() do?

...less until you find a need for it. It is used on sites like codepad.org to allow you to execute scripts in a test environment. eval() can also be used to execute highly-dynamic code, but you should make yourself fully aware of the security and performance risks before using it. ...
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What is the difference between user and kernel modes in operating systems?

... CPU instruction and reference any memory address. Kernel mode is generally reserved for the lowest-level, most trusted functions of the operating system. Crashes in kernel mode are catastrophic; they will halt the entire PC. User Mode In User mode, the executing code has no abili...
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How to run functions in parallel?

...find an answer to my question. I am trying to run multiple functions in parallel in Python. 6 Answers ...
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程序员找女朋友的技术攻略:实战篇 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...找女朋友的难度不亚于开发一个软件项目,前期没有合理定位和明确需求是很难达到预期效果的。这次,我们来谈谈程序员如...对于程序员朋友来说,找女朋友的难度不亚于开发一个软件项目,前期没有合理定位和明确需求是很...
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Android编程权威指南.pdf - 文档下载 - 清泛网 - 专注C/C++及内核技术

...手势事件处理以及创建个性化视图等知识。  RunTracker 定位追踪并在地图上显示环城或环球旅行线路的应用。借此应用学习使用定位服务、 SQLite数据库、加载器(loader)以及地图调用。WinXP,Win7,Win8,Win1014.9M
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Android编程权威指南.pdf下载 - 其他 - 清泛IT社区,为创新赋能!

...手势事件处理以及创建个性化视图等知识。  RunTracker 定位追踪并在地图上显示环城或环球旅行线路的应用。借此应用学习使用定位服务、 SQLite数据库、加载器(loader)以及地图调用。 阅读权限10
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横屏布局和手机不太一样 - App应用开发 - 清泛IT社区,为创新赋能!

...手机适应开发的界面布局要通过水平/垂直布局进行相对定位,部分尺寸需要进行动态计算。 有个布局案例可以参考一下:https://bbs.tsingfun.com/thread-1982-1-1.html引用: App Inventor 2  发表于 2024-10-17 13:12 要通过水平/垂直布局进...
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mobile location - App应用开发 - 清泛IT社区,为创新赋能!

...现上述功能除App外还要一个服务端,A手机授权GPS并上传定位,B手机上可以从服务端查看A的位置,然后地图展示。也就是不能直接拿到A手机的定位,必须是A安装了App并授权上报位置到服务器才能实现。
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“媒”出路?如今“媒体+行业”创业机会多得是 - 资讯 - 清泛网 - 专注C/C+...

...收益变现而产生回报,彻底颠覆了传统意义上对媒体功能定位和价值实现模式的认知。 “媒体+行业”的基本方法论 第一阶段: 选择一个拥有较大市场规模和受众用户的传统行业细分领域,建立针对甲方、乙方以及第三方等...
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Benchmarking (python vs. c++ using BLAS) and (numpy)

...e python for my program, what could I do to increase the performance when calling BLAS or LAPACK routines? Make sure that numpy uses optimized version of BLAS/LAPACK libraries on your system. share | ...