Objective-C 经典字典数组排序 - 省市区

 根据路径产生相应的字符              
tring *str = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil]; 
对字符串进行切割成为数组 
NSArray *array = [str componentsSeparatedByString:@"\n"]; 
 
 建立一个大数组 
 NSMutableArray *mutableArray = [NSMutableArray array]; 
 for (NSString *str in array) { 
 
  判断非空格字符,找出省 
   if (![str hasPrefix:@" "]) { 
 
 每找到一个省名字,就创建一个字典 
 NSMutableDictionary *proDic = [NSMutableDictionary dictionary]; 
 
 将省名存入字典,并设置Key为PROVIN 
 [proDic setObject:str forKeyedSubscript:@"PROVIN"]; 
 
 创建一个数组,作为存下属市用 
 NSMutableArray *cityArray = [NSMutableArray array]; 
 
 将市数组存入字典,设置key位CITYARRAY 
 [proDic setObject:cityArray forKeyedSubscript:@"CITYARRAY"]; 
 [mutableArray addObject:proDic]; 
   } 
 
 找到市名字 
 if ([str hasPrefix:@" "]&& ![str hasPrefix:@"  "]) { 
 
 取出数组最后一个元素,代表市所隶属的省字典 
 NSDictionary *proDic = [mutableArray lastObject]; 
 
      
 将字典中预留的数组取出 
 NSMutableArray *cityArray = [proDic objectForKey:@"CITYARRAY"]; 
      
 每找到一个市,创建一个字典 
 NSMutableDictionary *cityDic = [NSMutableDictionary dictionary]; 
      
 将市名字存入字典 
 [cityDic setObject:str forKey:@"CITY"]; 
      
 给下属区域创建个数组作为预留 
 NSMutableArray *areaArray = [NSMutableArray array]; 
     
 存入字典 
 [cityDic setObject:areaArray forKey:@"AREAARRAY"]; 
     
 将市字典存入数组中 
 [cityArray addObject:cityDic]; 
 } 
    
  找出下属区 
   if ([str hasPrefix:@"  "]) { 
    找出隶属的省字典 
    NSDictionary *proDic = [mutableArray lastObject]; 
    找出市数组 
    NSMutableArray *cityArray = [proDic objectForKey:@"CITYARRAY"]; 
    找出存储市的字典 
    NSDictionary *cityDic = [cityArray lastObject]; 
   找出字典中区数区 
    NSMutableArray *areaArray = [cityDic objectForKey:@"AREAARRAY"]; 
    将区域名字存入数组 
     [areaArray addObject:str]; 
  } 
} 
 for (NSDictionary *dic in mutableArray) { 
   NSLog(@"%@",[dic objectForKey:@"PROVIN"]); 
   for (NSDictionary *cityDic in [dic objectForKey:@"CITYARRAY"]) { 
     NSLog(@"%@",[cityDic objectForKey:@"CITY"]); 
    for (NSString *string in [cityDic objectForKey:@"AREAARRAY"]) { 
      NSLog(@"%@",string); 
      
     } 
  } 
    
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