public void Test_Generic(string[] commands, int[] args, bool?[] expected)
{
Assert.AreEqual(commands.Length, args.Length);
Assert.AreEqual(commands.Length, expected.Length);
bool?[] res = new bool?[commands.Length];
var sol = new MyHashSet();
for (int i = 0; i < commands.Length; i++)
{
switch (commands[i])
{
case "add":
sol.Add(args[i]);
break;
case "remove":
sol.Remove(args[i]);
break;
case "contains":
res[i] = sol.Contains(args[i]);
break;
}
}
CollectionAssert.AreEqual(res, expected);
}
static void Main(string[] args)
{
MyHashSet hashSet = new MyHashSet();
hashSet.Add(1);
hashSet.Add(2);
hashSet.Contains(1); // 返回 true
hashSet.Contains(3); // 返回 false (未找到)
hashSet.Add(2);
hashSet.Contains(2); // 返回 true
hashSet.Remove(2);
hashSet.Contains(2); // 返回 false (已经被删除)
}