iOS--對plist檔案進行讀寫,增刪改查

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對plist檔案進行讀寫

//擷取路徑對象    NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    NSString *path = [pathArray objectAtIndex:0];    //擷取檔案的完整路徑    NSString *filePatch = [path stringByAppendingPathComponent:@"column.plist"];        NSLog(@"%@",filePatch);        //寫入資料到plist檔案    NSMutableDictionary *dic1 = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"小小虎",@"name",@"5",@"age",@"boy",@"sex",nil];        NSMutableDictionary *dic2 = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"小小兮",@"name",@"6",@"age",@"girl",@"sex",nil];        //將上面2個小字典儲存到大字典裡面    NSMutableDictionary *dataDic = [NSMutableDictionary dictionary];    [dataDic setObject:dic1 forKey:@"一年級"];    [dataDic setObject:dic2 forKey:@"二年級"];    //寫入plist裡面    [dataDic writeToFile:filePatch atomically:YES];            //讀取plist檔案的內容    NSMutableDictionary *dataDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:filePatch];    NSLog(@"---plist一開始儲存時候的內容---%@",dataDictionary);

對pilst檔案進行修改

 //修改字典裡面的內容,先按照結構取到你想修改內容的小字典    NSMutableDictionary *dd = [dataDictionary objectForKey:@"一年級"];    [dd setObject:@"我改名字了哦" forKey:@"name"];    [dd setObject:@"我添加的新內容" forKey:@"content"];    [dd removeObjectForKey:@"age"];         //修改成功以後，將這個小字典重新添加到大字典裡面    [dataDictionary setObject:dd forKey:@"一年級"];         [dataDictionary writeToFile:filePatch atomically:YES];    NSLog(@"---plist做過操作之後的字典裡面內容---%@",dataDictionary);

刪除

//清除plist檔案，可以根據我上面講的方式進去本地查看plist檔案是否被清除    NSFileManager *fileMger = [NSFileManager defaultManager];         NSString *xiaoXiPath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0]stringByAppendingPathComponent:@"xiaoxi.plist"];         //如果檔案路徑存在的話    BOOL bRet = [fileMger fileExistsAtPath:xiaoXiPath];         if (bRet) {                 NSError *err;                 [fileMger removeItemAtPath:xiaoXiPath error:&err];    }

iOS--對plist檔案進行讀寫,增刪改查