form
表單內必須有 <input type="submit" value="submit">
才能提交數據html
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <form action="users" method="post"> <label>UserName<input name="username" type='text'></label> <br> <label>PassWord<input name="password" type='password'></label> <br> <input type="submit" value="submit"> </form> </body> </html>