如何使用jQuery或java脚本以编程方式按键

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

$(document).keydown(function(event) {
  // 按键事件处理逻辑
});

$(document).keydown(function(event) {
  var keyCode = event.keyCode || event.which;
  var key = event.key;
  // 按键事件处理逻辑
});

$(document).keydown(function(event) {
  var keyCode = event.keyCode || event.which;
  var key = event.key;
  
  if (keyCode === 32 || key === " ") {
    // 执行空格键按下时的操作
  }
});