用Delphi写的简易计算器，请多指教！- Simple calculator writes which with Delphi, please advises!

简单的计算器，简单的四则运算，小数运算 适合初学者-Simple calculator, simple arithmetic, decimals computing for beginners

高博文本计算器,支持+,-,*,/,平方,及数学函数表达式的计算-Bo Gao text calculator, support+,-,*,/, square, and the calculation of mathematical function expression

delphi写的四则运算计算器，用一个函数来完成对四则运算的规则处理。加减乘除括号。-delphi write four arithmetic calculator, a function to complete the processing of the rules of the four operations. Addition, subtraction, multiplication and division brackets.