常用
####------------否包含某个键key的方法
NSDictionary *dicss = @{@"name":@"lilei",@"age":@"13"};
if([[dicss allKeys]containsObject:@"name"]){
NSLog(@"111111");
}else{
NSLog(@"22222");
}
规范
NSDictionary *dict3 = @{@"keyA":@"valueA",
@"keyB":@"valueB",
@"keyC":@"valueC"};
遍历
//快速枚举
NSDictionary *dic = @{@"name":@"龙马",@"age":@"15"};
for (id key in dic){
id obj = [dic objectForKey:key];
NSLog(@"%@", obj);
}
NSDictionary 总结
https://www.jianshu.com/p/aa447d1ad33e
