HTML <form> related forms

The Action property specifies where to send the form data when the form is submitted

Radio grouping

As long as name is a group, you can select only one group.

<input type="radio" id="radio1" name="group1" /> radio1<input type="radio" id="radio2" name="group1" /> radio2<input type="radio" id="radio3" name="group1" /> radio3

Gets the node of the selected radio

使用jquery可以很方便的做好，先选择group，然后过滤出checked的，如下：var group1 = $("[name='group1']").filter(':checked');console.log(group1.attr('id'));选中其中的一个节点使用jquery设置checked属性$('#radio2').attr('checked','checked');

HTML <form> related forms