JavaScript reads remote XML file content using Microsoft.XMLDOM

JS uses Microsoft.XMLDOM to read the contents of the remote XML file, why do you want to read it remotely? In fact, for example, it is understood, because recently to engage in a remote reading of the weather information of the AJAX page, the weather information is the content of the remote Web site, is in the form of XML files, So we want to implement Ajax, we need to read the XML file in JS, began to feel very difficult ah, in fact, do not think so.

In the above code, HTTP://****.COM/AJAX/WEATHER.ASP?SUBCODE=B55 is the weather XML information of the remote Web site, XML generated by ASP, which directly calls the XMLDOM component for reading, And then call the selectSingleNode method, read the contents of the last node, that's it, is it simple?