今天用一种简洁的方法toggleClass()实现了隔行换色:代码如下:
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<!DOCTYPE HTML> <html> <head> <meta charset= "utf-8" > <title>隔行换色</title> <script src= "js/jquery-1.4.2.min.js" ></script> <style type= "text/css" > body,table,td, { font-family:Arial, Helvetica, sans-serif; font-size:12px; } .h { background: #f3f3f3; color: #000; } .c { background: #ebebeb; color: #000; } </style> </head> <body> <div id= "aaa" > <form> <table id= "table" width= "50%" border= "0" cellpadding= "3" cellspacing= "1" > <tr> <td width= "30" align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> <tr> <td align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> <tr> <td align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> <tr> <td align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> <tr> <td align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> <tr> <td align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> <tr> <td align= "center" ><input type= "checkbox" name= "checkbox" class= "check1" value= "checkbox" /></td> <td>蓝枫前端</td> <td>蓝枫前端</td> </tr> </table> </form> </div> <script> |
第一种比较复杂的方法:
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$( function () { $( "#table tr" ).hover( function () { $( this ).addClass( "h" ); }, function () { $( this ).removeClass( "h" ); }) $( "input" ).click( function () { if ($( this ).attr( "checked" )) { $( this ).closest( "tr" ).addClass( "c" ); } else { $( this ).closest( "tr" ).removeClass( "c" ); } }) }) |
第二种比较简单的方法:
toggleClass() 对设置或移除被选元素的一个或多个类进行切换。
该方法检查每个元素中指定的类。如果不存在则添加类,如果已设置则删除之。这就是所谓的切换效果。
不过,通过使用 "switch" 参数,您能够规定只删除或只添加类。
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$( function (){ $( "#table tr" ).hover( function (){ $( this ).toggleClass( "h" ); }) $( "input" ).click( function (){ var d = $( this ); d.closest( 'tr' ).toggleClass( "c" ,d.attr( "checked" )) ; }) }) </script> </body> </html> |