按鈕代碼如下 <button id="singup" class="btn" onclick="signup();">sign up</button>  <button id="signin" class="btn" onclick="signin();">sign in</button>點擊事件 <script type="text/javascript">             function signup() {                 $.ajax({                     url: 'verifyNew.php',                      method: 'POST',                     success: function(data) {                         if(data.success == 1) {                              alert(data.msg);                         }                     }                 });             }php <?php echo "Welcome" ?>