get and post request method:
get submission: method = "get" request and the address bar the way, the hyperlink (<a href="">) request mode, the default belong to get submission.
the difference between get and post request methods :
. A get displayed in the address bar request information (address bar but the information that can be accommodated is limited, 4-5KB, Ruoguo request the presence of large data files, pictures, etc., will not accommodate all the address bar the data error); POST is not displayed.
b. file upload, post must be
