对需求解的问题寻找和确定计算方法,并编写出计算机运行操作步骤的全部工作称为程序设计。在进行这项工作中,人们以专用符号,为计算机设计运算步骤——程序,并书写出来,以便修改、检查调试或交流。描述程序所使用的各种符号统称为程序设计语言。从原理上说,现在的电子数字计算机只能识别电压的高低或磁 The solution to the problem to find and determine the calculation method, and write the computer to run all the steps of the operation known as the program design. In carrying out this work, people use special symbols to design computation steps for the computer and write them out so as to modify, check and debug or communicate. The various symbols used to describe the program are collectively referred to as programming languages. In principle, electronic digital computers now only recognize the level of voltage or magnetism