Fallenking的专栏

网上搜集的左手鼠标指针，为了那些鼠标手疼痛的人们免费分享。感觉手疼就切换一下鼠标按钮，左手倒右手，总有一双适合的手。

The Objective-C language defers as many decisions as it can from compile time and link time to runtime. Whenever possible, it does things dynamically. This means that the language requires not just a compiler, but also a runtime system to execute the compiled code. The runtime system acts as a kind of operating system for the Objective-C language; it’s what makes the language work. This document looks at the NSObject class and how Objective-C programs interact with the runtime system. In particular, it examines the paradigms for dynamically loading new classes at runtime, and forwarding messages to other objects. It also provides information about how you can find information about objects while your program is running. You should read this document to gain an understanding of how the Objective-C runtime system works and how you can take advantage of it. Typically, though, there should be little reason for you to need to know and understand this material to write a Cocoa application.

The Objective-C language is a simple computer language designed to enable sophisticated object-oriented programming. Objective-C is defined as a small but powerful set of extensions to the standard ANSI C language. Its additions to C are mostly based on Smalltalk, one of the first object-oriented programming languages. Objective-C is designed to give C full object-oriented programming capabilities, and to do so in a simple and straightforward way. Most object-oriented development environments consist of several parts: ● An object-oriented programming language ● A library of objects ● A suite of development tools ● A runtime environment This document is about the first component of the development environment—the programming language. This document also provides a foundation for learning about the second component, the Objective-C application frameworks—collectively known as Cocoa. The runtime environment is described in a separate document, Objective-C Runtime Programming Guide .

无法上传大于15M的文件，分为3个，请一并下载。这是003 第一个包上传后发现标题有点误会，自己的资源却更改不了，不知道CSDN上传资源为什么这样做。 Android SDK r10.从http://d.android.com/sdk/index.html下载，国内无法直接访问，希望对大家有用。 上传日期 2011-04-11， 上传文件 installer_r10-windows.7z.003

Android SDK r10.从http://d.android.com/sdk/index.html下载，国内无法直接访问，希望对大家有用。 上传日期 2011-04-11， 上传文件 installer_r10-windows.7z.002

Android SDK r10.从http://d.android.com/sdk/index.html下载，国内无法直接访问，希望对大家有用。 上传日期 2011-04-11， 上传文件 installer_r10-windows.exe

1.Japanese MS Windows 95/98/NT/2000/XP/Vista is required. 2.Most double-byte characters are not shown properly on other language versions of MS Windows.