<body bgcolor="#000000"> <div id="text" style="font-size:20px;">你好,這是一段改變文字大小和顏色的javascript代碼</div> <script type="text/javascript"> var size = 20; var falg = 1; function colortext() { //獲取文字的大小 document.getElementById("text").style.color = getcolor(); document.getElementById("text").style.fontSize = getSize(); } //設置文字顏色 function getcolor() { var mycolor = "#"; var color ="123456789abcdef"; var colorcode = color.split(""); for(var i=0;i<6;i++) { mycolor+=colorcode[Math.floor(15*Math.random())]; } return mycolor; } //返回字體大小 function getSize() { if(falg == 1) { size = size+1; if(size == 60) falg = 0; return size; } if(falg == 0) { size = size-1; if(size == 20) falg = 1; return size; } } setInterval("colortext()",200); </script> </body>