點，逗號等被轉換成特殊符號「？」在iphone

我正在使用數據庫來獲取數據。在數據庫中有近750個問題。有些問題包含特殊字符，例如「，....，」等。但是，當獲取數據並在textview中打印它時，它會轉換爲「？」。是否有任何方法可以刪除這些數據符號的種類，並打印在原來的格式。點，逗號等被轉換成特殊符號「？」在iphone

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我用下面的代碼獲取和在TextView中顯示。

qsql=[NSString stringWithFormat:@"Select * from mydata where col_1 = '365'"]; 

    if(sqlite3_prepare_v2(database, [qsql UTF8String], -1, &statement, NULL) == SQLITE_OK) { 
     while (sqlite3_step(statement) == (SQLITE_ROW)) 
    { 

     char *field0 = (char *)sqlite3_column_text(statement, 1); 
     char *field1 = (char *)sqlite3_column_text(statement, 2); 
     NSString *t1 = nil; 
     if(field0!=NULL){ 
      t1 = [[NSString alloc] initWithUTF8String:field0]; 
      //NSString *t1 = [[NSString alloc] initWithCString:field0 encoding:NSUTF8StringEncoding]; 
      NSLog(@"%@jujuj" ,t1); 
     } 
     NSString *t2 = nil; 
     if(field1!=NULL){ 
      t2 = [[NSString alloc] initWithUTF8String:field1]; 
      NSLog(@"%@jhjhh" ,t2); 
     } 


     NSString *string=t1; 
     NSCharacterSet *doNotWant = [NSCharacterSet characterSetWithCharactersInString:@",."]; 
     string = [[string componentsSeparatedByCharactersInSet:doNotWant] componentsJoinedByString:@""]; 
     NSLog(@"%@jhgkjghkjg",string); 
     //NSLog(@"%@ %@",Q_NO, Q_NO1); 
     tv.text=t1; 
     tv1.text=t2; 



     [t1 release]; 
     [t2 release]; 
    } 
}

來源

2011-10-06 suji

使用NSCharacterSet從你的字符串刪除特殊字符

NSString *string = @"ram,..."; 
    NSCharacterSet *doNotWant = [NSCharacterSet characterSetWithCharactersInString:@",."]; 
    string = [[string componentsSeparatedByCharactersInSet:doNotWant] componentsJoinedByString:@""]; 
    NSLog(@"%@",string);

來源

2011-10-06 05:49:46 Narayana

納拉亞納，有沒有辦法以正確的方式來打印文本view.also我沒有直接的文字像@「公羊。」在string.im從數據庫中獲取它，所以我如何修改我的code.please幫助我 – suji

你有........ – suji

你可以在從數據庫中檢索數據時編寫我的代碼 – Narayana

使用這樣

const char *sqlStatement = Select * from mydata where col_1 = '365'"; 
sqlite3_stmt *compiledStatement; 


if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) 
    { 

     while (sqlite3_step(compiledStatement) == SQLITE_ROW) 
     { 

      nsstring *t1 = [NSString stringWithFormat:@"%s",(char*)sqlite3_column_text(compiledStatement, 1)];

來源

2011-10-06 06:19:14

當我使用你的代碼一些警告是在第一個說法「不兼容的指針類型初始化'const c ..」 – suji

你有........ – suji

它在哪條線顯示？ –

點，逗號等被轉換成特殊符號「？」在iphone

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