<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def createFileLink(self, resourceno):
 """Make a link of file If you don't know ``resourceno``, you'd better use ``getFileLink``. :param resourceno: Resource number of a file to create link :return: ``Shared url`` or ``False`` when failed to share a file """

        data = {'_callback': 'window.__jindo_callback._8920',
                'resourceno': resourceno,
                'userid': self.user_id,
                'useridx': self.useridx,
                }

        s, metadata = self.GET('createFileLink', data)

        if s:
            print "URL: %s" % (metadata['short_url'])
            return metadata['short_url']
        else:
            print "Error createFileLink: %s" % (metadata)
            return False