有什么问题请到评论中发表<br> <!-- http://www.mb5u.com/ --> <!-- http://wWw.mb5u.com/ --> <!--完整的HTML代码如下:--> <html> <head> <script language=\"JavaScript\"> <!-- ns4 = (document.layers)? true:false ie4 = (document.all)? true:false function init() { if (ns4) block = document.blockDiv if (ie4) block = blockDiv.style block.xpos = parseInt(block.left) block.active = false } function slide() { if (block.active) { block.xpos += 5 block.left = block.xpos setTimeout(\"slide()\",30) } } //--> </script> </head> <body bgcolor=\"#FFFFFF\" onLoad=\"init()\"> <p>点击或按着不动以下链接使对象移动。</p> <p><a href=\"javascript:void(null)\" onMouseDown=\"block.active=true; slide(); return false;\" onMouseUp=\"block.active=false\" onMouseOut=\"block.active=false\">移动</a> </p> <div id=\"blockDiv\" style=\"position:absolute; left:50px; top:100px; width:30px; height:30px; clip:rect(0px 30px 30px 0px); layer-background-color:red; background-color:red;\"> </div> </body> </html>