Question

我要求在用户尝试关闭浏览器窗口时获取访问权限。我得到了这个方法 -

<script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js">
</script>
<center>
  <h1>Vacation Rental</h1>
</center>

<div>
  <form id="chatham">
    <label><b><u>Chatham, MA</u></b></label><br>
    <label><b>$300 a Day</b></label><br>
    <label>Name:</label><br>
    <input name="nameA" type="text" /><br>
    <label>Email Address:</label><br>
    <input name="emailA" type="text" /><br>
    <label>Phone Number:</label><br>
    <input name="phoneA" type="text" /><br>
    <label>How many days would you like to rent?</label><br>
    <select>
      <option value="5-10">5-10 Days</option>
      <option value="6-7">10-15 Days</option>
      <option value="8-9">15-20 Days</option>
    </select>
    <input id="showA" type="button" value="Show Picture">
    <input id="submitA" type="button" value="Submit">
    <input id="resetA" type="button" value="Reset">
  </form>
</div>

<div>
  <form id="wellfleet">
    <label><b><u>Wellfleet, MA</u></b></label><br>
    <label><b>$250 a Day</b></label><br>
    <label>Name:</label><br>
    <input name="nameB" type="text" /><br>
    <label>Email Address:</label><br>
    <input name="emailB" type="text" /><br>
    <label>Phone Number:</label><br>
    <input name="phoneB" type="text" /><br>
    <label>How many days would you like to rent?</label><br>
    <select>
      <option value="5-10">5-10 Days</option>
      <option value="6-7">10-15 Days</option>
      <option value="8-9">15-20 Days</option>
    </select>
    <input id="showB" type="button" value="Show Picture">
    <input id="submitB" type="button" value="Submit">
    <input id="resetB" type="button" value="Reset">
  </form>
</div>

<div>
  <form id="dennis">
    <label><b><u>Dennis, MA</u></b></label><br>
    <label><b>$350 a Day</b></label><br>
    <label>Name:</label><br>
    <input name="nameC" type="text" /><br>
    <label>Email Address:</label><br>
    <input name="emailC" type="text" /><br>
    <label>Phone Number:</label><br>
    <input name="phoneC" type="text" /><br>
    <label>How many days would you like to rent?</label><br>
    <select>
      <option value="5-10">5-10 Days</option>
      <option value="6-7">10-15 Days</option>
      <option value="8-9">15-20 Days</option>
    </select>
    <input id="showC" type="button" value="Show Picture">
    <input id="submitC" type="button" value="Submit">
    <input id="resetC" type="button" value="Reset">
  </form>
</div>

<div>
  <form id="provincetown">
    <label><b><u>Provincetown, MA</u></b></label><br>
    <label><b>$300 a Day</b></label><br>
    <label>Name:</label><br>
    <input name="nameD" type="text" /><br>
    <label>Email Address:</label><br>
    <input name="emailD" type="text" /><br>
    <label>Phone Number:</label><br>
    <input name="phoneD" type="text" /><br>
    <label>How many days would you like to rent?</label><br>
    <select>
      <option value="5-10">5-10 Days</option>
      <option value="6-7">10-15 Days</option>
      <option value="8-9">15-20 Days</option>
    </select>
    <input id="showD" type="button" value="Show Picture">
    <input id="submitD" type="button" value="Submit">
    <input id="resetD" type="button" value="Reset">
  </form>
</div>

<img id="house1" src="http://placehold.it/350x150" />
<img id="house2" src="http://placehold.it/350x150" />
<img id="house3" src="http://placehold.it/350x150" />
<img id="house4" src="http://placehold.it/350x150" />

或

l = ['a', 'b', 'c', 'a', 'd']
for i in range(len(l)-2, -1, -1):
    if l[i] == 'a':
        l[i] = l[i] + l.pop(i+1)
print(l)

虽然这些工作甚至可以在页面导航后退和页面重新加载。任何人都可以帮助如何控制页面关闭？

我传递的消息也没有显示相同，在firefox上显示 -

此页面要求您确认是否要离开 - 为您提供数据已输入可能无法保存。

在chrome上说 -

要重新加载此网站吗？你所做的改变可能不是保存。

阻止页面/选项卡关闭但不能导航

0 个答案: