NSDictionary

//字典对象

NSDictionary *dic1 = [NSDictionarydictionaryWithObjectsAndKeys:@1,@"1",@2,@"2",nil];

NSDictionary *dic2 = [NSDictionarydictionaryWithObject:@1forKey:@"1"];

NSDictionary *dic3 =
@{@"1":@1,
@"2":@2};

NSArray *objs =
@[@1,@2];

NSArray *keys =
@[@"1",@"2"];

NSDictionary *dic4 = [NSDictionarydictionaryWithObjects:objs
forKeys:keys];

//字典对象的使用

id obj = [dic1
objectForKey:@"2"];

NSLog(@"%@",obj);

for (id key
in dic4) {

id obj = [dic1
objectForKey:key];

NSLog(@"%@",obj);

}

NSDictionary *count =
@{@"name":@"jacky",

@"age":@25,

@"tel":@"13141274448",

@"e-mail":@"chris.com"

};

NSDictionary *count1 =
@{@"name":@"tom",

@"age":@23,

@"tel":@"1314127448",

@"e-mail":@"1016835032.com"

};

NSMutableArray *arr = [[NSMutableArrayalloc]init];

[arr addObject:count];

[arr addObject:count1];

NSLog(@"%@",arr);

}

return0;
}