JavaScript实现跟随鼠标移动而移动的文字

来源：互联网发布：剑三拍照软件编辑：程序博客网时间：2024/05/29 17:00
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>跟随鼠标的文字</title><style type="text/css">.spanstyle{position: absolute;visibility: visible;top: -50px;font-size: 9pt;color: #FF6600;font-weight: bold;}</style><script language="javascript">//设定参数var x, y; //鼠标当前在页面上的位置var step = 20; //字符显示间距，为了好看，step=0则字符显示没有间距，视觉效果差var flag = 0;var message = "javascript跟随鼠标的文字."; //跟随鼠标要显示的字符串message= message.split(""); //分割字符串var xpos = new Array();for(i=0; i<=message.length-1; i++) {xpos[i] = -50;}var ypos = new Array(); //分割字符串for(i=0; i<=message.length-1; i++) {ypos[i] = -50;}function handlerMM(e) { //函数:得到当前鼠标在页面中的位置x = (document.layers) ? e.pageX : document.body.scrollLeft + event.clientX;y = (document.layers) ? e.pageY : document.body.scrollTop + event.clientY;flag = 1;}function makesnake() { //函数: 产生跟随时候的一种效果if(flag == 1 && document.all) {     //IE浏览器for(i=message.length-1; i>=1; i--) {xpos[i] = xpos[i-1] + step; //从尾向头确定字符的位置，每个字符为前一个字符"历史"水平坐标+step间隔ypos[i] = ypos[i-1]; //垂直坐标为前一字符的历史"垂直"坐标}xpos[0] = x + step;ypos[0] = y;for(i=0; i<message.length-1; i++) { //动态生成显示每个字符span标记var thisspan = eval("span" + (i) + ".style");thisspan.posLeft = xpos[i];thisspan.posTop = ypos[i];}} else if (flag == 1 && document.layers) {   //Netscapefor(i=message.length-1; i>=1; i--) {xpos[i] = xpos[i-1] + step;ypos[i] = ypos[i-1];}xpos[0] = x + step;ypos[0] = y;for(i=0; i<message.length-1; i++) {var thisspan = eval("document.span" + i);thisspan.left = xpos[i];thisspan.top = ypos[i];}}var timer = setTimeout("makesnake()", 30); //使用setTimeout延时执行makesnake函数//setTimeout("makesnake()",30); 也可以}</script></head><body onLoad="makesnake()"><center><h1>跟随鼠标的文字</h1><hr><br><script language="javascript">for(i=0; i<=message.length-1; i++) { //创建跟随文字的各个标签//使用span来标记字符，是为了方便使用CSS，并可以自由的绝对定位document.write("<span id='span" + i + "'class='spanstyle'>");document.write(message[i]);document.write("</span>");}if(document.layers) {document.captureEvents(Event.MOUSEMOVE);}document.onmousemove = handlerMM; //给document对象的onmousemove事件赋上handlerMM函数</script></center></body></html>
0 0