<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> .hide{ display: none; } .active{ background-color: brown; } .menu{ height: 38px; background-color: #eeeeee; line-height: 38px; } .menu .menu-item{ float: left; border-right: 1px solid red; padding: 0 5px; cursor: pointer; } .content{ min-height: 100px; border: 1px solid #eeeeee; } </style> </head> <body> <div style=" 700px;margin: 0 auto"> <div class="menu"> <div class="menu-item active" a="1">菜单一</div> <div class="menu-item" a="2">菜单二</div> <div class="menu-item" a="3">菜单三</div> </div> <div class="content"> <div b="1">内容一</div> <div class="hide" b="2">内容二</div> <div class="hide" b="3">内容三</div> </div> </div> <script src="jquery.js"></script> <script> $('.menu-item').click(function () { $(this).addClass('active').siblings().removeClass('active') var targt = $(this).attr('a') $('.content').children("[b='"+ targt+"']").removeClass('hide').siblings().addClass('hide') }); </script> </body> </html>
第二种方式（通过索引实现）：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> .hide{ display: none; } .active{ background-color: brown; } .menu{ height: 38px; background-color: #eeeeee; line-height: 38px; } .menu .menu-item{ float: left; border-right: 1px solid red; padding: 0 5px; cursor: pointer; } .content{ min-height: 100px; border: 1px solid #eeeeee; } </style> </head> <body> <div style=" 700px;margin: 0 auto"> <div class="menu"> <div class="menu-item active" a="1">菜单一</div> <div class="menu-item" a="2">菜单二</div> <div class="menu-item" a="3">菜单三</div> </div> <div class="content"> <div b="1">内容一</div> <div class="hide" b="2">内容二</div> <div class="hide" b="3">内容三</div> </div> </div> <script src="jquery.js"></script> <script> $('.menu-item').click(function () { $(this).addClass('active').siblings().removeClass('active') $('.content').children().eq($(this).index()).removeClass('hide').siblings().addClass('hide') }); </script> </body> </html>