) {<br>
                            
                            &nbsp;&nbsp; <a href="">OK</a> = 0,<br>
                            
                            &nbsp;&nbsp; <a href="">UnknownError</a> = 1,<br>
                            
                            &nbsp;&nbsp; <a href="">OpenCacheError</a> = 1001,<br>
                            
                            &nbsp;&nbsp; <a href="">ReadCacheError</a> = 1002,<br>
                            
                            &nbsp;&nbsp; <a hre