匹配所有单选按钮
查找所有单选按钮
<form> <input type="text" /> <input type="checkbox" /> <input type="radio" /> <input type="image" /> <input type="file" /> <input type="submit" /> <input type="reset" /> <input type="password" /> <input type="button" /> <select><option/></select> <textarea></textarea> <button></button> </form>
$(":radio")
[ <input type="radio" /> ]