const addButton = document.getElementById("add-btn");
const removeButton = document.getElementById("remove-btn");
const taskList = document.getElementById("task-list");

let taskIndex = 3;

addButton.addEventListener("click", function () {
  const item = document.createElement("li");
  item.textContent = `新任务 ${taskIndex}`;
  taskList.appendChild(item);
  taskIndex += 1;
});

removeButton.addEventListener("click", function () {
  const lastItem = taskList.lastElementChild;

  if (lastItem) {
    lastItem.remove();
  }
});