程序设计语言分为机器语言、汇编语言和高级语言三类。机器语言是计算机唯一能直接使用的语言，也叫做计算机指令。

Programming languages are divided into three types: machine language, which is also called an instruction system, is the only one used directly by computers. The.

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编译器是一种将高级程序设计语言编写的源程序转化为语义等价的机器语言程序的系统软件。

Compiler is a system software that translates high level programming language into semantically equivalent machine code.

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编译器是一种将高级程序设计语言编写的源程序转化为语义等价的机器语言程序的系统软件。

Compiler is a system software that translates high level programming language into semantically equivalent machine code.

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