如何在Blazor app的Razor页面添加多个机型？

<select @bind="selectedModel">
    <option value="model1">机型1</option>
    <option value="model2">机型2</option>
    <option value="model3">机型3</option>
</select>

@code {
    private string selectedModel = "model1";
}

@if (selectedModel == "model1")
{
    <p>机型1的内容</p>
}
else if (selectedModel == "model2")
{
    <p>机型2的内容</p>
}
else if (selectedModel == "model3")
{
    <p>机型3的内容</p>
}