纯JS代码实现隔行变色鼠标移入高亮
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2022-03-30 13:38:18
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在前端开发中经常见到隔行变色鼠标移入高亮显示的效果,下面小编给大家分享基于js代码实现的隔行变色鼠标移入高亮效果,废话不多说了,具体代码如下所示:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> #table { width: 400px; border-collapse: collapse; } </style> </head> <body> <table id="table" border="1"> <thead> <td>ID</td> <td>姓名</td> <td>年龄</td> </thead> <tbody> <tr> <td>1</td> <td>黄艺</td> <td>20</td> </tr> <tr> <td>2</td> <td>张三</td> <td>21</td> </tr> <tr> <td>3</td> <td>李四</td> <td>22</td> </tr> <tr> <td>4</td> <td>网无</td> <td>23</td> </tr> </tbody> </table> </body> <script type="text/javascript"> // 实现隔行变色,鼠标移入高亮 var table = document.getElementById("table"); var oldColor = "";//声明一个变量,保存表格原来的颜色 for(var i = 0; i < table.tBodies[0].rows.length; i++) { //使用判断实现隔行变色 if(i % 2 == 0) { table.tBodies[0].rows[i].style.backgroundColor = "gray"; } else { table.tBodies[0].rows[i].style.backgroundColor = "#ccc"; } //实现鼠标移入高亮 table.tBodies[0].rows[i].onmouseover = function() { oldColor = this.style.backgroundColor; this.style.backgroundColor = "red"; } //实现鼠标移出变回原来的颜色 table.tBodies[0].rows[i].onmouseout = function() { this.style.backgroundColor = oldColor; } } </script> </html>