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App Inventor 2 中文网 · 升级日志
...验。 优化 优化部分功能;解决“翻译器”崩溃问题;部分文档翻译;菜单优化等。 230710 2023/07/10 全新 “密码修改”功能全新上线!如遗忘初始密码,请联系客服重置。 优化 优化部分功能...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...问0x4的内存地址,不crash才怪。于是,你一定会有如下的问题:
1)为什么不是 13行if语句出错?f.a被初始化为空了嘛,用空指针访问成员变量为什么不crash?
2)为什么会访问到了0x4的地址?靠,4是怎么出来的?
3)代码中的...
What and where are the stack and heap?
...ack
The stack often works in close tandem with a special register on the CPU named the stack pointer. Initially the stack pointer points to the top of the stack (the highest address on the stack).
The CPU has special instructions for pushing values onto the stack and popping them back from the sta...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...没有共享存储的情况下解决非结构化数据高可靠性存储的问题1、问题产生背景三台TOMCAT 服务器通过负载均衡设备对外提供WEB服务。怎么保证...在没有共享存储的情况下解决非结构化数据高可靠性存储的问题
1、问题产生背景
...
Sleeping in a batch file
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This should be accurate, but it is a CPU intensive way to go about it. Normally you want an interupt driven implementation so that the process does not consume CPU cycles while it waits. This shouldn't be a problem for infrequent short waits, as is probably the ...
创业第一年 太特么累了 - 资讯 - 清泛网 - 专注C/C++及内核技术
...吧?”。。。。。。;在考虑如何回答这些我都没想过的问题时,忽然感觉心里有一万只草泥马在奔腾,这货是故意来玩我的吧?再这么聊下去,估计我钱包里仅有的两百块钱也保不住,他留下还不祸害全公司的人。借口有事果...
What is the difference between a thread and a fiber?
.... This also means that the operating system can take advantage of multiple CPUs and CPU cores by running more than one thread at the same time and leaving it up to the developer to guard data access.
With fibers: the current execution path is only interrupted when the fiber yields execution (same n...
来自微软的一手内幕:Windows 10是怎么出炉的 - 创意 - 清泛网 - 专注C/C++及内核技术
...各种bug,他都非常耐心的在听,甚至还用邮件秒传了一个问题的解决方案给我。
他承认,干了这么多年的产品支持,自己对品质有一定偏执。很明显,他是发自内心地在乎。虽然许多人会开玩笑说,IT支持只不过是一个告诉...
How do emulators work and how are they written? [closed]
... the NES, you have the PPU (pixel processing unit) which requires that the CPU put pixels into its memory at precise moments. If you use interpretation, you can easily count cycles and emulate proper timing; with dynamic/static recompilation, things are a /lot/ more complex.
Interrupt handling:
Int...
小心!创业者不可不知的互联网家装惊天伪命题 - 资讯 - 清泛网 - 专注C/C++...
...便能够实时监控到整个装修过程,对于家装过程中出现的问题,用户没有必要前往装修现场,便能够完成对整个装修过程的控制……改变正在悄然发生,虽然这些改变虽然有些机械,但是它们却正在真切地发生着。
而用户也从...