從plist文件中讀取數據

    從plist文件中讀取數據
- (void)readDataFromPlist
{
       1.先獲取文件路徑
    NSString * filePath = [[NSBundle mainBundle] pathForResource:@"Book" ofType:@"plist"];
        2.根據路徑初始化字典對象
    self.dic = [NSDictionary dictionaryWithContentsOfFile:filePath];
    
       將不可邊字典變成可變字典
    
   self.addressBook = [NSMutableDictionary dictionaryWithDictionary:_dic];
    
     將字典封裝成對象
     (1)從字典中遍歷出key
    for (NSString * key in self.dic) {
       

    根據key獲取對應的數組
        NSArray * groupArr =self.dic[key];
        
 (5) 創建可變的小數組,存儲封裝的對象
        NSMutableArray * newGroupArr = [NSMutableArray array];

 (3)獲取小數組中元素(遍歷小數組)
        for (NSDictionary * groupDic in groupArr) {
 

 (4)通過字典初始化AddressPerson
            AddressPerson * Person = [[AddressPerson alloc]initWithDic:groupDic];
                        
            [newGroupArr addObject:Person];//將對象存儲到新的可變數組中
            RELEASE_SAFE(Person);
        }
     

        將要原來key對應的存儲字典的小數組替換成裝有對象的心得可變的數組
         [self.addressBook setObject:newGroupArr forKey:key];
    }
    
     取出字典中所有的key
    self.orderedKeys= [[self.addressBook allKeys]sortedArrayUsingSelector:@selector(compare:)];
     NSLog(@"%@",addressBook);
       
}