一个检测判断IP是否合法的Delphi算法，也就是IP格式输入不对的话，会提示错误，重新输入，本例主要是帮助Delphi初学者实现在自己的程序窗口中验证IP地址，实例源码简单。 -A test to determine whether a legitimate IP Delphi algorithm, which is entered wrong IP format, then the error will be prompted to re-enter, in this case main