用js模拟键盘输入

//这个就是用来输入字科符的
 var inpEle=document.getElementById("stockCode");
 var st =‘000001‘
  var evt = new InputEvent(‘input‘, {
    inputType: ‘insertText‘,
    data: st,
    dataTransfer: null,
    isComposing: false
  });
  inpEle.value = st;
  inpEle.dispatchEvent(evt);

//敲回车
let keyCoke = 13
let keyboardEvent = document.createEvent(‘KeyboardEvent‘)
let initMethod = typeof keyboardEvent.initKeyboardEvent !== ‘undefined‘ ? ‘initKeyboardEvent‘ : ‘initKeyEvent‘
keyboardEvent[initMethod](‘keyup‘, true, true, window, false, false, false, false, keyCoke, 0)
document.getElementById(‘stockCode‘).dispatchEvent(keyboardEvent)

//不知道为什么弄的那个网站还得这样处理一下

function fireKeyEvent(el, evtType, keyCode) {
  var evtObj;
  if (document.createEvent) {
       
          evtObj = document.createEvent(‘UIEvents‘);
          evtObj.initUIEvent(evtType, true, true, window, 1);
 
          delete evtObj.keyCode;
          if (typeof evtObj.keyCode === "undefined") {//为了模拟keycode
              Object.defineProperty(evtObj, "keyCode", { value: keyCode });                       
          } else {
              evtObj.key = String.fromCharCode(keyCode);
          }
 
          if (typeof evtObj.ctrlKey === ‘undefined‘) {//为了模拟ctrl键
              Object.defineProperty(evtObj, "ctrlKey", { value: true });
          } else {
              evtObj.ctrlKey = true;
          }
      el.dispatchEvent(evtObj);
      }
}
 fireKeyEvent(document.getElementById(‘stockCode‘),‘keyup‘,13)