Question

我正在上一个网站设计课程，我的第一个项目是在页面加载时刺激鼠标单击音频播放器。

我的网站分为3个文件：HTML，CSS和JS。

当前代码为：

    function onPlayerReady(event) {
        var playButton = document.getElementById("play");
       playButton.addEventListener("click", function() {
       player.playAudio(); 
     }); 

      var pauseButton = document.getElementById("pause");
      pauseButton.addEventListener("click", function() {
      player.pauseAudio();  
     });
    }

    <div class="buttons">
      <svg class="button" id="play">
        <use xlink:href="#play">
      </svg>
      <svg class="button" id="pause">
        <use xlink:href="#pause">
      </svg>
    </div>

Answer 1

DOM元素具有单击功能，可让您执行此操作。

line 383, in run_background_function
_function_handler.invoke_user_function(event_object) 
File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 217, in invoke_user_function return call_user_function(request_or_event) 
File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 214, in call_user_function event_context.Context(**request_or_event.context)) 
File "/user_code/main.py", line 9, in hello_pubsub pubsub_message = base64.b64decode(event['protoPayload']).decode('utf-8') KeyError: 'protoPayload'

Answer 2

借助 .click（）的帮助，您可以手动触发按钮单击方法。因此，在您的情况下，如果您要自动点击播放按钮，则必须编写


    // this function will execute automatically when page  all contents are ready/loaded 
    $(document).ready(function(){
    //add click event lister
    onPlayerReady(event);
    //auto click button with help of
    playButton.click();
    });

Fore More detail you can find jquery document

如何自动单击按钮（在加载时刺激鼠标单击）？

2 个答案: