一个小小的系统。工新手学习参考，希望有所收获，有所帮助-A small system. Workers to learn new reference gain hope, help

分别使用是API函数和Delphi组件两种方法获取本机IP地址，方便实用-Use respectively is API functions and Delphi two methods to gain the machine components IP address, convenient and practical

Delphi获取获得打印页边距程序代码，一个打印程序，delphi设置打印参数时能用上部分功能。-Delphi gain print margins program code, a print program, Delphi set the print parameters can be used on the part of the function.