Manual:Random page/zh

A random page can be viewed via Special:Random. This uses the  function, which is capable of avoiding duplicate values for up to approximately 4,611,686,014,132,420,609 (i.e., ≈ $$(2^{31} - 1)^{2}$$) articles, and the  values from the  table. The hook can be used to modify the selection criteria.

In, the RAND function is used to populate page_random.

By default, selection will be limited to pages from namespaces in. The user can choose which namespace to look in. For example, if they wanted to view a random file they could go to Special:Random/file. If they wanted to view a random mainspace page they could go to Special:Random/main, etc.

The file that implements this feature is. (Special:Randomredirect) directs the user to a random redirect page (minus the second redirect). There is an array,, that allows for adding extra SQL statements to the query for selecting a random page from the database.

参见

 * Special:RandomInCategory/Individual_cats
 * T200703, Extension:Random In Category,
 * Special:RandomInCategory/Individual_cats
 * T200703, Extension:Random In Category,
 * T200703, Extension:Random In Category,