功能相当全的高级计算器源代码，支持复合运算、记忆功能。缺憾是括号功能未能实现，此外输入框使用的是数字而非字符，所以对小数点后的多位零值处理不便，需要结合“小数点后位数”的显示值使用。-Functionally equivalent source code for all high-level calculator to support complex operations, memory function. Shortcoming is the failure to achieve the bracket features, in addition to input box using a digital rather than the characters, so the decimal number zero value after the deal with the inconvenience, requires a combination of " digits after the decimal point"　display the value of the use.