Delphi源码之：Md5算法+判断网页是否更新过

通过hash验证Md5算法 判断指定网页是否更新过，比如你要下载网页，昨天已经下载过的，今天不想再次下载，可以参考本程序的判断方法-Delphi source code is: Md5 algorithm+ to determine whether the updated web page through the Md5 authentication hash algorithm to determine whether the updated designated page, for example, you want to download page, downloaded yesterday, and today do not want to download, you can reference to determine the method of this procedure