JavaScript 插件安装列表navigator.plugins JavaScript 鼠标经过onMouseOver事件 javascript break 语句 JavaScript 插件安装列表navigator.plugins <html> <head> <title>List of Plug-Ins</title> </head> <body> <table border = "1"> <tr> <th>Plug-in Name</th> <th>Filename</th> <th>Description</th> </tr> <script language = "JavaScript" type = "text/javascript"> for (i=0; i<navigator.plugins.length; i++) { document.write("<tr><td>"); document.write(navigator.plugins[i].name); document.write("</td><td>"); document.write(navigator.plugins[i].filename); document.write("</td><td>"); document.write(navigator.plugins[i].description); document.write("</td></tr>"); } </script> </table> </body> </html> JavaScript 鼠标经过onMouseOver事件 javascript break 语句