elided_page_range分页器未按预期工作

function generatePageRange(currentPage, totalPages, maxDisplayPages) {
    const range = [];
    const halfMaxDisplayPages = Math.floor(maxDisplayPages / 2);

    let startPage = currentPage - halfMaxDisplayPages;
    let endPage = currentPage + halfMaxDisplayPages;

    if (startPage < 1) {
        startPage = 1;
        endPage = Math.min(maxDisplayPages, totalPages);
    }

    if (endPage > totalPages) {
        endPage = totalPages;
        startPage = Math.max(1, totalPages - maxDisplayPages + 1);
    }

    for (let i = startPage; i <= endPage; i++) {
        if (i === 1 || i === totalPages || (i - startPage) % maxDisplayPages === 0) {
            range.push(i);
        } else {
            range.push('...');
        }
    }

    return range;
}

// 示例使用
const currentPage = 5;
const totalPages = 20;
const maxDisplayPages = 5;
const pageRange = generatePageRange(currentPage, totalPages, maxDisplayPages);
console.log(pageRange); // 输出: [1, '...', 3, 4, 5, 6, 7, '...', 20]