<html><body><h1>button formmethod 属性</h1><form action="/action_page.php" method="get" target="_blank"> <label for="fname">First name:</label> <input type="text" id="fname" name="fname"><br><br> <label for="lname">Last name:</label> <input type="text" id="lname" name="lname"><br><br> <button type="submit">提交</button> <button type="submit" formmethod="post">使用 POST 提交</button></form></body></html>