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<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>使用 jQuery的attr方法选中与取消选中checkbox</title> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script> </head> <body> <div> <label for="checkbox"> <input type="checkbox" name="money" id="checkbox"> 选项 </label> </div> <button id="chk-btn">选中</button> <button id="cancel-btn">取消选中</button> <script> $(function (){ $("#chk-btn").click(function (){ $("#checkbox").attr("checked", true); }); $("#cancel-btn").click(function (){ $("#checkbox").attr("checked", false); }); }); </script> </body> </html>