Question

我提出了一个问题,我花了很多时间辛苦挣扎......请帮助。

I m 采用以下代码,在清单档案中添加记录:

[数据_appo setObject:@“string Value” forKey:[NSString stringWithFormat:@"%i”,(i-1)]

并做工。现在,如果我试图从档案中读一下,而不是添加(我需要用不同的钥匙复制价值)如下:

NSString *string_appo=[data_appo ObjectForKey:[NSString stringWithFormat:@“%i”,j]

[data_appo setObject:string_appo forKey:[NSString stringWithFormat:@"%i",(i-1)]];

之后,I gest ERROR_EXEC and the appcock...

Any idea???

Any help will be appreciated

提前感谢!

Answer 1

您在增补后保存了该名单。我是这样做的。

     //find the plist file
        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
        NSString *documentsDirectory = [paths objectAtIndex:0]; 
        NSString *path = [documentsDirectory stringByAppendingPathComponent:@"Notes.plist"]; 
    //set the value for the key
        [notesData setValue:textView.text forKey:[NSString stringWithFormat:@"General notes %d",selectedIndex]];
    //save the plist file   
        [notesData writeToFile: path atomically:YES];
    //relese and reload it
        [notesData release];
        notesData = [[NSMutableDictionary alloc] initWithContentsOfFile: path];

我希望这一帮助!

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