c語言開源庫
Ⅰ c語言有哪些開源圖形庫
最著名的就是GTK了。。。和QT對著乾的那個。。GNOME就是它開發的
還有比如用於游戲的SDL、或者使用腳本的TCL/TK的庫，用於嵌入式的minigui的
最有名的就是GTK了。。。模擬OO封裝，就是學習難度太大了，不亞於winapi。。。
Ⅱ c語言本身是開源的嗎，c語言是用什麼寫的謝謝大家了
C語言是一個由ISO組織中的ANSI制定的標准，任何個人或者組織都可以根據這個標准將其實現。現今，世界上有許多不同的C語言實現，比較著名的有：GCC、Watcom、MS C等，其中前兩者是開源的，後者是閉源的。下面粘貼幾個老外的回答（原回答鏈接）。
The C language is not a piece of software but a defined standard, so one wouldn't say that it's open-source, but rather that it's an open standard.
There are a gazillion different compilers for C however, and many of those are indeed open-source. The most notable example is GCC's C compiler, which is all under the GNU General Public License (GPL), an open-source license.
There are more options. Watcom is open-source, for instance. There is no shortage of open-source C compilers, but without a doubt the most widespread one, at least in the non-Windows world, is GCC.
For Windows, your best bet is probably Watcom or GCC by using Cygwin or MinGW.
C is a standard which specifies how C compilers should generate programs.
C itself doesn't have any source code, just like a musical note doesn't have any plastic.
Some C compilers, such as GCC, are open source.
C is just a language, and a standardised one at that, too. It pretty much is the compiler that "does all the work". Different compilers did have different dialects; before the the C99 ANSI standard, you had things like Borland C and other competing compilers, that implemented the C language in their own fantastic ways.
stdlib is just an agreed-upon collection of standard libraries that are required to be present in any ANSI C implementation.
關於C++開源與否：
與C語言類似，C++也是由ISO/ANSI制定的一個標准，所謂的「官方」並未給出確切的實現，任何組織與個人都可以根據標准自己開發一個C++編譯器出來。出名的C++編譯器有：GCC/G++、libc/libc++、clang（++）、 Visual studio和MS´ runtime等。也把老外的幾個回答貼出來（原回答鏈接）。
C++ itself is only a description what the language should be,
without a definite implementation.
Anyone can make his own implementations (compiler etc, runtime library, ...)
and call it C++ if it fits to the description.
http://www.open-std.org/jtc1/sc22/wg21/
And if a implementation is open source depends on the creator.
Examples of implementation (parts):
GCC/G++, libc/libc++, clang (++ too), Visual studio and MS´ runtime...
C++ is developed by an ISO standard committee. There's also a C++ foundation that runs a web site you might want to read.
C++ itself is a language, not a specific implementation, so there's no source code available for the standard/language itself.
Some C++ implementations are open source (e.g., Gnu and Clang).
1. C++ is a code standard defined by the International Organization of Standardization (ISO). There are many different implementations of the language, but they all tend to conform to C++11. Unlike Linux or Qt, C++ is just a standard, and to use any code written in the language you'll need a compiler. The major compilers (list from Wikipedia) are LLVM Clang, GCC, Microsoft Visual C++, and the Intel C++ Compiler.
2. C++ revisions are dealt with by ISO, and are influenced primarily by the maintainers of the above four implementations.
3. Clang and GCC are both open-source, I'm sure if you poke around you can find other conforming compilers but those are the two most used.
總之，跟Java、Python和PHP這樣所謂的開源語言不同，C語言與C++沒有官方提供的各自確切的實現代碼（庫），ISO/ANSI僅僅提供了C和C++的標准。
這些都是我從自個兒博客摘抄來的，也不見得有人看得到。
Ⅲ c語言入門必收藏，可以參考的學習網站
c語言入門，可以參考的學習網站？
1、cplusplus：一個優秀的C++學習網站，除了提供相應的教程之外，還有一個很棒的論壇。和其它網站相比，它的價值更多體現在參考上，因為裡面解釋了許多編程概念。
2、C++ Source Codes：345個比較全面的關干C++的源代碼清單。
3、C++ FAQ：C++常見問題，項目工程中遇到的很多問題都有，涉及C++高效編程。
4、LearnCpp：免費學習c++編程。
5、TutorialsPoint：一個很好的網站!想學的技術(包括升模C++)，它幾乎都提供了詳細的教程。保存好就對了，超級有用。漏笑檔
6、The C++ Standard Library：這是一個收集了數C/C++網站鏈接列表的網頁。
7、Free C/C++ Libraries：免費C++開源庫和其它有用的工具。
8、C and C++ Users Group：C和C++的用戶團體提供了免費的涵蓋各種編程領域 C++ 項目返亂的源代碼，包括 AI、動畫、編譯器、資料庫、調試、加密、游戲、圖形、GUI、語言工具、系統編程等。