我正在制作一個(gè)用于學(xué)習(xí)的計(jì)數(shù)器應(yīng)用程序，在給計(jì)數(shù)器名稱后，計(jì)數(shù)器在 onclick 事件中遞增 1 這在只有計(jì)數(shù)器時(shí)工作正常但如果我添加多個(gè)名稱它會(huì)在新計(jì)數(shù)器上采用最后一個(gè)增量值，基本上每個(gè)新創(chuàng)建的計(jì)數(shù)器的增量應(yīng)該是分開的。let counter = 0function updateCount() {  let progressCountUpdate = document.getElementsByClassName("progress-count")  for (var i = 0; i < progressCountUpdate.length; i++) {    progressCountUpdate[i].onclick = function () {      this.childNodes[1].innerText = counter++    }  }}function createProgress() {  progressCount = document.createElement("div")  progressCount.className = "progress-count"  progressNameNew = document.createElement("span")  progressNameNew.innerText = progresslabel.value;  progressNameNew.className = 'progress-name'  progressCountNumber = document.createElement("span")  progressCountNumber.innerText = 0  progressCountNumber.className = "progress-counter"  progressCount.appendChild(progressNameNew)  progressCount.appendChild(progressCountNumber)  progressDisplay.appendChild(progressCount)  progresslabel.value = ""  updateCount()}addbutton.onclick = function () {  if (progresslabel.value === "") {    alert("enter progress name")  } else {    checkStartEndTime();    createProgress();  }}<div class="progress-display"></div>如何確保每個(gè)計(jì)數(shù)器的增量都是獨(dú)立的。