布爾值'\ x06'而不是默認值'YES'

執行Sqlite庫，在4或5個步驟後，我們將BOOL值作爲'\ x06'而不是'YES'。BOOl值將爲'\ 0'。這個BOOL值有什麼問題？布爾值' x06'而不是默認值'YES'

BOOL success;//success value is '\x06' 
NSLog(@"success:%c",success); 

//If the database is present then quit. 
if(success) 
{ 
    [self OpenDB:databasePath]; 
    return; 
} 

//the database does not exists, so we will copy it to the users document directory] 

//Copy the database file to the users document directory. 
success = [FileManager copyItemAtPath:dbPath toPath:databasePath error:&error];// this place success value is '\0' 

//If the above operation is not a success then display a message. 
//Error message can be seen in the debugger's console window. 
if(success)// 
    NSAssert1(0, @"Failed to copy the database. Error: %@.", [error localizedDescription]); 
[self OpenDB:databasePath]; 

Am checking success only....

的NSLog輸出是成功的：

來源

2012-09-11 SnakingPrabhu

我們展示的代碼。 – trojanfoe

您在設置之前是否真的檢查過「成功」的價值，還是您在複製代碼時犯了錯誤？ – hvd

嘗試使用％d而不是％C或嘗試將默認值設置爲成功，
像BOOL success = NO;

NSLog(@"success: %d", success);

來源

2012-09-11 12:02:37 elp

布爾值'\ x06'而不是默認值'YES'

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