练习

NSDictionary *dic1 = [NSDictionary dictionaryWithObjectsAndKeys:@"lisi",@"name",@"nan",@"sex",@"23",@"age", nil];

NSDictionary *dic2 = [NSDictionary dictionaryWithObjectsAndKeys:@"zhangsan",@"name",@"nan",@"sex",@"29",@"age", nil];

NSDictionary *dic3 = [NSDictionary dictionaryWithObjectsAndKeys:@"wangwu",@"name",@"nv",@"sex",@"18",@"age", nil];

NSDictionary *dic4 = [NSDictionary dictionaryWithObjectsAndKeys:@"zhaoliu",@"name",@"nan",@"sex",@"30",@"age", nil];

NSDictionary *dic5 = [NSDictionary dictionaryWithObjectsAndKeys:@"wali",@"name",@"nan",@"sex",@"13",@"age", nil];

NSDictionary *dic6 = [NSDictionary dictionaryWithObjectsAndKeys:@"liuhao",@"name",@"nan",@"sex",@"24",@"age", nil];

#if 0

NSMutableArray *Larray = [NSMutableArray arrayWithObjects:dic1,dic6, nil];

NSMutableArray *Warray = [NSMutableArray arrayWithObjects:dic3,dic5, nil];

NSMutableArray *Zarray = [NSMutableArray arrayWithObjects:dic2,dic4, nil];

NSMutableDictionary *bigDic = [NSMutableDictionary dictionaryWithObjectsAndKeys:Larray,@"l",Warray,@"w",Zarray,@"z", nil];

// NSLog(@"%@",bigDic);

NSMutableDictionary *newDic = [NSMutableDictionary dictionary];

for (NSMutableArray *keys in bigDic) {

NSMutableArray *array1 = [bigDic objectForKey:keys];

NSMutableArray *array = [NSMutableArray array];

for (NSMutableDictionary *dic in array1) {

Student *stu = [[Student alloc] init];

stu.name = [dic objectForKey:@"name"];

stu.age = [dic objectForKey:@"age"];

stu.sex = [dic objectForKey:@"sex"];

[array addObject:stu];

}

[newDic setObject:array forKey:keys];

}

for (NSMutableDictionary *key in newDic) {

for (Student *stu in [newDic objectForKey:key]) {

NSLog(@"%@",stu.name);

}

}

NSLog(@"%@",newDic);