@alicloud/console-base-rc-pagination/build/es/model/util/generate-page-list.js

ConsoleBase 组件 - 分页

export default function generatePageList(page, pages, maxPageButton) {
  var arr = [];
  if (pages <= maxPageButton) {
    for (var i = 1; i <= pages; i++) {
      arr.push(i);
    }
    return arr;
  }
  arr.push(1);

  // 除去第一页，最后一页以及当前页，剩下的页数
  var othersCount = maxPageButton - 3;
  var halfCount = Math.round(othersCount / 2);
  var start;
  var end;
  start = page - halfCount;
  end = page + halfCount;
  if (start <= 1) {
    start = 2;
    end = start + othersCount;
  }
  if (start > 2) {
    arr.push('...');
  }
  if (end >= pages - 1) {
    end = pages - 1;
    start = pages - 1 - othersCount;
  }
  for (var j = start; j <= end; j++) {
    arr.push(j);
  }
  if (end < pages - 1) {
    arr.push('...');
  }
  arr.push(pages);
  return arr;
}