def close(self):
		'''关闭与数据库的连接'''
		if VERBOSE:
			print 'Database connection CLOSE.'
		self.conn.close()
def on_remove_duplicates_state_changed(self):
        self.fuzz_table_model.remove_duplicates = self.ui.chkBRemoveDuplicates.isChecked()
        self.fuzz_table_model.update()
        self.remove_duplicates()