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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...建涉及手势识别的应用程序。
关键词
系统、计算机科学教育、手势识别、多点触摸识别
简介
MIT App Inventor 是一个基于块的事件驱动 Web 平台，它允许每个人，尤其是新手，开始编程和构建...
Why is Git better than Subversion?
...terfaces in development. Some good ones include TortoiseGit and GitHub for Mac.
Partial checkouts/clones of repositories are not possible at the moment (I read that it's in development). However, there is submodule support. Git 1.7+ supports sparse checkouts.
It might be harder to learn, even though...
How do I use vimdiff to resolve a git merge conflict?
...
@AndersKitson, since you are on Mac OS X, FileMerge is perfect, free and comes with XCode.
– romainl
Feb 16 '13 at 8:27
8
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Class does not implement its superclass's required members
...nt (i.e. in Objective-C, since the day I started programming Cocoa back in Mac OS X 10.0) to deal with initializers that your class is not prepared to handle. The docs have always been quite clear about your responsibilities in this regard. But how many of us bothered to fulfill them, completely and...
Colors in JavaScript console
...
on Mac OS X it's at ~/Library/Application\ Support/Google/Chrome/Default/User\ StyleSheets/Custom.css.
– Lance Pollard
Nov 17 '11 at 21:58
...
PHP parse/syntax errors; and how to solve them
...s \n newlines, not \r carriage returns.
Which is occasionally an issue for MacOS users (even on OS X for misconfigured editors).
It often only surfaces as an issue when single-line // or # comments are used. Multiline /*...*/ comments do seldom disturb the parser when linebreaks get ignored.
If y...
How to avoid reverse engineering of an APK file?
...
First rule of app security: Any machine to which an attacker gains unrestricted physical or electronic access now belongs to your attacker, regardless of where it actually is or what you paid for it.
Second rule of app security: Any software that leaves the...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...it's hard to read if I put results in comment.
I get these results with a Mac Pro (Westmere 6-Cores Xeon 3.33 GHz). I compiled it with clang -O3 -msse4 -lstdc++ a.cpp -o a (-O2 get same result).
clang with uint64_t size=atol(argv[1])<<20;
unsigned 41950110000 0.811198 sec 12.9263 GB/...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...default-calling-convention
x86-64 Linux System Call convention:
x86-64 Mac OS X is similar but different. TODO: check what *BSD does.
Refer to section: "A.2 AMD64 Linux Kernel Conventions" of System V Application Binary Interface AMD64 Architecture Processor Supplement. The latest versions of...
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...erDrive®处理器
10 多处理器（指可用于多处理器系统）
功能标志（Feature Flag）
在EDX和ECX中返回的功能标志表明着该CPU都支持那些功能
EDX定义如下（资料来源与Intel）：
bit Name Description
-----------------------...