源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>编程字典</title> </head> <body> <form action="action_page.php"> E-mail: <input type="email" name="userid"><br> <input type="submit" value="Submit"><br> <input type="submit" formnovalidate value="Submit without validation"> </form> <p><strong>注意:</strong> formnovalidate 属性不支持IE9和更早的版本，或者Safari </p> </body> </html>
运行结果