Graduation Design--002 Get DTD, XSD data (not finished)

First, the basic idea:

1. Get URLs for DTD and XSD data (obtained from Google search results)

2. Get URLs getting DTD, XSD files (during removal cannot open connection, analysis of erroneous data, collation of data)

Ii. obtaining URLs for DTD and XSD data

The URLs of the so-called DTD and XSD data are identified by the Red Line

Analysis is not difficult to find out the law:(search results are in id= ' search ' div, each URL in class= ' G ' div class= ' R ' in the H3 of A's href attribute)

The basic code is as follows (for third-party module BeautifulSoup):

Graduation Design--002 Get DTD, XSD data (not finished)