我的头顶:

• 使用 GetType() 而不是 typeof(Page) 以便将脚本绑定到您的实际页面类而不是基类，
• 传递一个键常量而不是 Page.UniqueID，这没有那么有意义，因为它应该被命名控件使用，
• 以分号结束您的 Javascript 语句，
• 在PreRender阶段注册脚本:

• Use GetType() instead of typeof(Page) in order to bind the script to your actual page class instead of the base class,
• Pass a key constant instead of Page.UniqueID, which is not that meaningful since it's supposed to be used by named controls,
• End your Javascript statement with a semicolon,
• Register the script during the PreRender phase:

protected void Page_PreRender(object sender, EventArgs e)
{
    ScriptManager.RegisterStartupScript(this, GetType(), "YourUniqueScriptKey", 
        "alert('This pops up');", true);
}