检测指针位置是否在onPointerUp事件内

// 获取目标区域的DOM元素
const targetElement = document.getElementById('target');

// 监听onPointerUp事件
targetElement.addEventListener('pointerup', (event) => {
  // 获取指针位置
  const pointerX = event.clientX || event.touches[0].clientX;
  const pointerY = event.clientY || event.touches[0].clientY;

  // 获取目标区域的位置信息
  const targetRect = targetElement.getBoundingClientRect();
  const targetLeft = targetRect.left;
  const targetTop = targetRect.top;
  const targetRight = targetRect.right;
  const targetBottom = targetRect.bottom;

  // 判断指针位置是否在目标区域内
  if (pointerX >= targetLeft && pointerX <= targetRight && pointerY >= targetTop && pointerY <= targetBottom) {
    console.log('指针位置在onPointerUp事件内');
  } else {
    console.log('指针位置在onPointerUp事件外');
  }
});