bindPage property

Bind the dialog to the current page, the bound page is not on the top of the stack, the dialog is automatically hidden, the bound page is placed on the top of the stack, and the dialog is automatically displayed; the bound page is closed, and the dialog bound to the page will also be removed

将该dialog与当前页面绑定，绑定页面不在路由栈顶，dialog自动隐藏，绑定页面置于路由栈顶，dialog自动显示; 绑定页面被关闭,被绑定在该页面上的dialog也将被移除