- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath  
    {  
        NSInteger row = [indexPath row];  

        static NSString  *CellIdentifier = @"CellIdentifier";  

        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];  

        if
 
 (cell == nil) {  
            cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];  
            cell.selectionStyle = UITableViewCellSelectionStyleNone;  
        }  

        cell.textLabel.text = [_passwordArray objectAtIndex:row];  

        CGRect
 
 textFieldRect = CGRectMake(0.0, 0.0f, 215.0f, 31.0f);  
        UITextField *theTextField = [[UITextField alloc] initWithFrame:textFieldRect];  
        theTextField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;  
        theTextField.returnKeyType = UIReturnKeyDone;  
        theTextField.secureTextEntry
 
 = YES;  
        theTextField.clearButtonMode = YES;  
        theTextField.tag = row;  
        theTextField.delegate = self;  

    //此方法為關鍵方法  
        [theTextField addTarget:self action:@selector(textFieldWithText:) forControlEvents:UIControlEventEditingChanged];  

        switch (row) {  
            case 0:  
                theTextField.placeholder = @"請輸入舊密碼";  
                break;  
            case 1:  
                theTextField.placeholder = @"請輸入新密碼";  
                break;  
            case 2:  
                theTextField.placeholder = @"請再次輸入新密碼";  
                break;  
            default:  
                break;  
        }  

        cell.accessoryView = theTextField;   
        [theTextField release];  

        return cell;  
    }  

    - (void)textFieldWithText:(UITextField *)textField  
    {  
        switch (textField.tag) {  
            case 0:  
                self.theOldPassword = textField.text;  
                break;  
            case 1:  
                self.theNewPassword = textField.text;  
                break;  
            case 2:  
                self.theTwiceNewPassword = textField.text;  
                break;  
            default:  
                break;  
        }  
    }