先看效果: 代码: 代码如下: <html> <head> <title>Good Test</title> [removed] function showSubMenu(SubMenu) { document.getElementById(SubMenu).style.display = “inline”; } function HideSubMenu(SubMenu) { document.getElementById(SubMenu).style.display = “none”; } [removed] <style> .menu{ margin:1px 1px 1px 1px; p