Delphi:Delphi仿Windows计算器，实现从右向左输入内容的计算器，从界面上来看，似乎与Windows计算器很一样，为了演示从右到左输入字符，写了这个用于演示功能的计算器，在计算器的数据输入窗口中，你可看到是从右边输入数据的。

　　相关的源代码说明：operator = (Emp,add,sub,mul,divid) 定义空、加、减 、乘、除，Operate1: Operator = emp 记录上一次用户按下的运算符，Pointed: Boolean = False 作用是定义是否输入小数点，Delphi中关于StrToFloat函数的详细说明或实例参见《Delphi编程词典》基础知识部分，该部分对所有对象都有详细语法说明和最实用的应用实例。

-Delphi: Delphi imitation of the Windows calculator, calculator typing from right to left, from the interface, it seems that it is the same with the Windows calculator, in order to demonstrate enter characters from right to left, wrote this calculation functions for demonstration , a data entry window in the calculator, you can see the input data from the right.

Associated source code shows: operator = (Emp, add, sub, mul, divid)　define empty, add, subtract, multiply, divide, Operate1: Operator = emp　once the user presses on the record operators, Pointed: Boolean = False　role is to define whether a decimal point, Delphi StrToFloat detailed descr iption of the function or instance see "Delphi programming Dictionary" basics section, which has a detailed descr iption of the syntax and the most practical application examples for all objects.