| 术语 | C |
| 释义 | C C语言 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. 一种高级程序设计语言,由贝尔实验室的Dennis Ritchie开发成功,最初是在PDP 11/70 小型计算机上用作UNIX操作系统的编程工具。现在C语言不再受操作系统和计算机机种的约 束,而且在微机上已得到普遍使用。C语言原为系统编程而设计,而现在绝大多数应用程序设 计广泛使用它。C语言的说明语法用于描述数据,而不是让数据来决定程序的形式。C语言可 支持目前计算机上用到的各种基本的数据类型,并且能以任何数据类型的数组和结构来定义 数据聚合。它的主要优点体现在系统编程过程中的任何结构，包括硬件的控制寄存器，都 可用C语言来表达。C的函数一般是赋值调用,但由于它可以传递指针的值,所以也可以实现 函数的引用调用。C语言简洁的语法对专业程序设计员很有吸引力,而且它的编译程序能够 产生高效的目标代码。 |
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