js验证码,保存html直接可以看效果吆
<html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>无标题页</title> </head> <body> <form id="form1" runat="server"> <div> <div id="divCode" style="background-color:White; width:52px; height:16px; padding:5px; text-align:center; vertical-align:middle; letter-spacing:5px; border:solid 1px blue"> <span></span><span ></span><span ></span><span ></span></div> </div><input id="Button1" type="button" value="换一张" onclick="JavaScript:validteCode()"/> </form> </body> </html> <script language="JavaScript" type="text/JavaScript"> function validteCode() { var codes = new Array(4); //用于存储随机验证码 var colors = new Array("Red","Green","Gray","Blue","Maroon","Aqua","Fuchsia","Lime","Olive","Silver"); for(var i=0;i < codes.length;i++) {//获取随机验证码 codes[i] = Math.floor(Math.random()*10); } var spans = document.getElementById("divCode").all; for(var i=0;i<spans.length;i++) { spans[i].innerHTML=codes[i]; spans[i].style.color = colors[Math.floor(Math.random()*10)]; //随机设置验证码颜色 } } document.onload = validteCode(); </script> ?