一个只能处理数字的TEdit组件-can only handle a number of components TEdit

一个用于做IP地址编辑功能的控件，可以方便的模拟操作系统中对系统IP、网关IP、掩码等属性进行编辑的功能。-One for the editing function to do IP address control, can be easily simulated operating system on the system IP, Gateway IP, mask and other attributes for editing fu