本程序的编写基础是Tubro C2.0汉化版,它在tubro c的原有基础上实现了多汉字的支持方便了我们的使用。生成的程序可移植性强兼容性好稳定！现在只实现了加、减、乘、除、求幂、求模，求平方根，求Sin，求Cos，求Log10，以及一个时钟原代码。这个系统是基于软件发展的生命周期来研制的，它可以直接输入数学表达式，不需要任何转换，就可以直接输出数学四则运算的结果。但是，每次只能运算一个表达式。不能运算多个表达式。在程序里面在添加一组选择函数即可。本论文主要介绍了本课题的开发背景，开发的过程和所要完成的功能。重点的说明了系统设计思想，设计的步骤、难点技术和解决方案。-Prepared on the basis of this procedure is Tubro C2.0 finished version, which implements support for multiple characters to facilitate the use of our original basis tubro c on. Generated program portability, good compatibility and stability! Now only realized add, subtract, multiply, divide, exponentiation, modulus, square root, seeking Sin, seeking Cos, seeking Log10, as well as a clock source code. This system is based on the software development life cycle to develop, it can directly enter mathematical expressions, without any conversion, you can directly output the results of the four mathematical operations. However, you can only arithmetic expression. Not computing multiple expressions. In the program inside the function can add a set of choices. This paper introduces the development background of the topic, the development of processes and functions to be accomplished. Focus illustrates the system design, the design steps and difficult technology and solutions.