字母C

世紀 (century)

字母C

calorie;

candle;

capacitance;

capacitor;

capacity;

cathode;

cell;

Celtic;

centigrade;

center;

century;

chapter;

circle;

coefficient;

computer;

concentration;

congress;

conservative;

constant;

copy;

copyright;

cubic;

current

A somewhat structured high-level programming language developed by Dennis Ritchie at Bell Laboratories for implementation of the UNIX operating system on the PDP 11／70 minicomputer. It is no longer tied to any operation system or machine, and is now coming into widespread use on microcomputers. The C Language was originally designed for system programming. It is now extensively applied to most branches of applications programming. C's declaration syntax is designed to help describe data, rather than have the data determine the form of a program. C supports the basic data types found in modern computers and enables the definition of data aggregates in the form of arrays and structures of any data type. The major advantage of this full set of data types is that any construction that arises in system programming, including hardware control registers, can be represented in C.C functions are called by value. Since the value of a pointer may be passed, calls by reference are also provided. The terse syntax is attractive to professional programmer, and the compilers generate very efficient object code.

一种高級程序�z計語言,由�叡��b驗室的Dennis Ritchie開�Y成功,最初是在PDP 11/70 小型計算机上用作UNIX操作系�s的編程工具。現在C語言不再受操作系�s和計算机机种的約 束,而且在微机上已得到普遍使用。C語言原為系�s編程而�z計,而現在絕大多數應用程序�z 計な泛使用它。C語言的說明語法用於描述數据,而不是讓數据來�貝w程序的形式。C語言可 支持目前計算机上用到的各种基本的數据�W型,并且能以任何數据�W型的數組和結构來定�� 數据聚合。它的主要优�藡^現在系�s編程過程中的任何結构，包括硬件的控制寄存器，都 可用C語言來表�}。C的函數一般是賦值調用,但由于它可以傳�y指針的值,所以也可以�b現 函數的引用調用。C語言簡洁的語法對專�眶{序�z計員很有吸引力,而且它的編譯程序能�{ 產生高效的目標代碼。