本文实例讲述了js实现按钮颜色渐变动画效果的方法。分享给大家供大家参考。具体如下：
这里演示js实现按钮慢慢变色的方法，鼠标移到按钮上，按钮的背景色就发生变化，是慢慢的变化，点击按钮会打开指定链接，这里主要是演示按钮变色的代码实现方法。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/js-button-cha-color-animate-codes/
具体代码如下：
<HTML><HEAD><TITLE>按钮慢慢变色</TITLE> <STYLE type=text/css> BODY { MARGIN-TOP: 0px; FONT-SIZE: 9pt; MARGIN-LEFT: 0px; MARGIN-RIGHT: 0px; FONT-FAMILY: "宋体" } A { FONT-WEIGHT: 400; FONT-SIZE: 9pt; COLOR: black; TEXT-DECORATION: none } A:hover { FONT-WEIGHT: 400; FONT-SIZE: 9pt; COLOR: red; TEXT-DECORATION: underline } A:active { FONT: 9pt "宋体"; CURSOR: hand; COLOR: #ff0033 } .STYLE1 { color: #000099; font-weight: bold; font-family: "华文新魏"; font-size: 30px; } .STYLE2 { color: #FF3399; font-size: 40px; font-family: "华文行楷"; } </STYLE> <META http-equiv=Content-Type content="text/html; charset=gb2312"> </HEAD> <BODY bgColor=#fef4d9> <CENTER> <span>按钮慢慢变色</span> </CENTER><BR> <CENTER> <TABLE borderColor=#66FF00 border=5 borderlight="green"> <TBODY> <TR> <TD align=middle><span>效果显示</span></TD> </TR> <TR> <TD align=middle> <SCRIPT language=JavaScript> hexColor = ["0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"]; function mOver() { for (i = 0; i < 13; i++) { setTimeout('document.myForm.button.style.background = "#'+hexColor[12-i]+'0'+hexColor[12-i]+'0c0";', i * 40); } } function mOut() { document.myForm.button.value = "进入查字典教程网"; for (i = 0; i < 12; i++) { setTimeout('document.myForm.button.style.background = "#'+hexColor[i]+'0'+hexColor[i]+'0c0";', i * 40); } } // End --> </SCRIPT> <FORM name=myForm> <input onMouseDown='document.myForm.button.value=" 谢谢"' onMouseOver=mOver() onClick='window.location="http://www.jb51.net/"' onMouseOut=mOut() type=button value=鼠标放在上面 name=button > </FORM></TD></TR></TBODY></TABLE> </CENTER> </BODY> </HTML>
希望本文所述对大家的javascript程序设计有所帮助。