这就是我在chrome中使用js/typescript所做的尝试。多亏了 这是灵感的答案。

var x = document.querySelector('input');

var keyboardEvent = new KeyboardEvent("keypress", { bubbles: true });
// you can try charCode or keyCode but they are deprecated
Object.defineProperty(keyboardEvent, "key", {
  get() {
    return "Enter";
  },
});
x.dispatchEvent(keyboardEvent);

{ // example document.querySelector('input').addEventListener("keypress", e => console.log("keypress", e.key)) // unfortunatelly doesn't trigger submit document.querySelector('form').addEventListener("submit", e => { e.preventDefault(); console.log("submit") }) } var x = document.querySelector('input'); var keyboardEvent = new KeyboardEvent("keypress", { bubbles: true }); // you can try charCode or keyCode but they are deprecated Object.defineProperty(keyboardEvent, "key", { get() { return "Enter"; }, }); x.dispatchEvent(keyboardEvent); <form> <input> </form>

你可以使用dispatchEvent():

function simulateKeyPress() {
  var evt = document.createEvent("KeyboardEvent");
  evt.initKeyboardEvent("keypress", true, true, window,
                    0, 0, 0, 0,
                    0, "e".charCodeAt(0))
  var body = document.body;
  var canceled = !body.dispatchEvent(evt);
  if(canceled) {
    // A handler called preventDefault
    alert("canceled");
  } else {
    // None of the handlers called preventDefault
    alert("not canceled");
  }
}

我没有对此进行测试，但它改编自dispatchEvent()文档中的代码。您可能需要通读这些文档，以及createEvent()和initKeyEvent()的文档。

只要用户按下有问题的键，你就可以存储对该even的引用，并将其用于任何HTML其他元素:

EnterKeyPressToEmulate<input class="lineEditInput" id="addr333_1" type="text" style="width:60%;right:0%;float:right" onkeydown="keyPressRecorder(event)"></input> TypeHereToEmulateKeyPress<input class="lineEditInput" id="addr333_2" type="text" style="width:60%;right:0%;float:right" onkeydown="triggerKeyPressOnNextSiblingFromWithinKeyPress(event)"> Itappears Here Too<input class="lineEditInput" id="addr333_3" type="text" style="width:60%;right:0%;float:right;" onkeydown="keyPressHandler(event)"> <script> var gZeroEvent; function keyPressRecorder(e) { gZeroEvent = e; } function triggerKeyPressOnNextSiblingFromWithinKeyPress(TTT) { if(typeof(gZeroEvent) != 'undefined') { TTT.currentTarget.nextElementSibling.dispatchEvent(gZeroEvent); keyPressHandler(TTT); } } function keyPressHandler(TTT) { if(typeof(gZeroEvent) != 'undefined') { TTT.currentTarget.value+= gZeroEvent.key; event.preventDefault(); event.stopPropagation(); } } </script>

如果你创建自己的事件，你可以设置keyCode，你可以从任何真实的键盘事件复制现有的参数(忽略目标，因为它的工作dispatchEvent)和:

ta = new KeyboardEvent('keypress',{ctrlKey:true,key:'Escape'})

这种方法支持跨浏览器更改键代码的值。 源

var $textBox = $("#myTextBox");

var press = jQuery.Event("keypress");
press.altGraphKey = false;
press.altKey = false;
press.bubbles = true;
press.cancelBubble = false;
press.cancelable = true;
press.charCode = 13;
press.clipboardData = undefined;
press.ctrlKey = false;
press.currentTarget = $textBox[0];
press.defaultPrevented = false;
press.detail = 0;
press.eventPhase = 2;
press.keyCode = 13;
press.keyIdentifier = "";
press.keyLocation = 0;
press.layerX = 0;
press.layerY = 0;
press.metaKey = false;
press.pageX = 0;
press.pageY = 0;
press.returnValue = true;
press.shiftKey = false;
press.srcElement = $textBox[0];
press.target = $textBox[0];
press.type = "keypress";
press.view = Window;
press.which = 13;

$textBox.trigger(press);

由于在控制台上下文中易于使用，它曾经是单行的。但可能还是有用的。

Var pressthiskey = "q"/* <——q为例*/; var e = new事件("keydown"); E.key =按下这个键; e.keyCode = e.key.charCodeAt(0); e.which = e.keyCode; e.altKey = false; e.ctrlKey = true; e.shiftKey = false; e.metaKey = false; E.bubbles = true; document.dispatchEvent (e);

如果你可以使用jQuery 1.3.1:

函数simulateKeyPress(字符){ jQuery.event.trigger ({ 类型:键盘按键, 其中:character.charCodeAt (0) })； ｝ $(函数(){ 美元(的身体).keypress(函数(e) { 警报(e.which); })； simulateKeyPress(“e”); })； < script src = " https://cdnjs.cloudflare.com/ajax/libs/jquery/1.3.1/jquery.min.js " > > < /脚本