设为首页代码： 设为首页，离开时自动提示设为首页，打开页面时自动弹出窗口询问是否设为首页，鼠标指向时提示设为首页，关闭当前窗口的功能-Make home code: Homepage Make home leave automatically prompt pop-up window to open automatically when the page is set to prompt Set Home Home, mouse point to close the current window