使表格的第一列粘滞

table {
  table-layout: fixed;
}

th:first-child,
td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background-color: #fff; /* 可选，设置背景色以区分第一列和其他列 */
}

window.addEventListener('scroll', function() {
  var table = document.getElementById('table');
  var firstColumn = table.querySelectorAll('th:first-child, td:first-child');
  var scrollTop = window.pageYOffset || document.documentElement.scrollTop;
  
  for (var i = 0; i < firstColumn.length; i++) {
    firstColumn[i].style.transform = 'translateY(' + scrollTop + 'px)';
  }
});