The Delphi judge the existence of Web site, check whether the input of the URL web site can open, head will use Delphi s TNMHTTP control to check the effectiveness of the web site. Running from the screenshot you can see, the program will return different results, such as whether the correct address resolution, will be able to connect to the host, the existence of this page, this several aspects to comprehensive judgment, whether the URL can correctly be accessed.

判断网址是否存在\address.dcu
................\address.dfm
................\address.pas
................\ex100.cfg
................\ex100.dof
................\ex100.dpr
................\ex100.res
判断网址是否存在

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