修改文件：/thinkphp/library/think/paginator/driver/Bootstrap.php

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原有分页不带省略

// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2017 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: zhangyajun <448901948@qq.com>
// +----------------------------------------------------------------------

namespace think\paginator\driver;

use think\Paginator;

class Bootstrap extends Paginator
{

/**
 * 上一页按钮
 * @param string $text
 * @return string
 */
protected function getPreviousButton($text = "«")
{

    if ($this->currentPage() <= 1) {
        return $this->getDisabledTextWrapper($text);
    }

    $url = $this->url(
        $this->currentPage() - 1
    );

    return $this->getPageLinkWrapper($url, $text);
}

/**
 * 下一页按钮
 * @param string $text
 * @return string
 */
protected function getNextButton($text = '»')
{
    if (!$this->hasMore) {
        return $this->getDisabledTextWrapper($text);
    }

    $url = $this->url($this->currentPage() + 1);

    return $this->getPageLinkWrapper($url, $text);
}

/**
 * 页码按钮
 * @return string
 */
protected function getLinks()
{
    if ($this->simple)
        return '';

    $block = [
        'first'  => null,
        'slider' => null,
        'last'   => null
    ];

    $side   = 3;
    $window = $side * 2;

    if ($this->lastPage < $window + 6) {
        $block['first'] = $this->getUrlRange(1, $this->lastPage);
    } elseif ($this->currentPage <= $window) {
        $block['first'] = $this->getUrlRange(1, $window + 2);
        $block['last']  = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
    } elseif ($this->currentPage > ($this->lastPage - $window)) {
        $block['first'] = $this->getUrlRange(1, 2);
        $block['last']  = $this->getUrlRange($this->lastPage - ($window + 2), $this->lastPage);
    } else {
        $block['first']  = $this->getUrlRange(1, 2);
        $block['slider'] = $this->getUrlRange($this->currentPage - $side, $this->currentPage + $side);
        $block['last']   = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
    }

    $html = '';

    if (is_array($block['first'])) {
        $html .= $this->getUrlLinks($block['first']);
    }

    if (is_array($block['slider'])) {
        $html .= $this->getDots();
        $html .= $this->getUrlLinks($block['slider']);
    }

    if (is_array($block['last'])) {
        $html .= $this->getDots();
        $html .= $this->getUrlLinks($block['last']);
    }

    return $html;
}

/**
 * 渲染分页html
 * @return mixed
 */
public function render()
{
    if ($this->hasPages()) {
        if ($this->simple) {
            return sprintf(
                '
%s %s
',
                $this->getPreviousButton(),
                $this->getNextButton()
            );
        } else {
            return sprintf(
                '
%s %s %s
',
                $this->getPreviousButton(),
                $this->getLinks(),
                $this->getNextButton()
            );
        }
    }
}

/**
 * 生成一个可点击的按钮
 *
 * @param  string $url
 * @param  int    $page
 * @return string
 */
protected function getAvailablePageWrapper($url, $page)
{
    return '
' . $page . '
';
}

/**
 * 生成一个禁用的按钮
 *
 * @param  string $text
 * @return string
 */
protected function getDisabledTextWrapper($text)
{
    return '
' . $text . '
';
}

/**
 * 生成一个激活的按钮
 *
 * @param  string $text
 * @return string
 */
protected function getActivePageWrapper($text)
{
    return '
' . $text . '
';
}

/**
 * 生成省略号按钮
 *
 * @return string
 */
protected function getDots()
{
    return $this->getDisabledTextWrapper('...');
}

/**
 * 批量生成页码按钮.
 *
 * @param  array $urls
 * @return string
 */
protected function getUrlLinks(array $urls)
{
    $html = '';

    foreach ($urls as $page => $url) {
        $html .= $this->getPageLinkWrapper($url, $page);
    }

    return $html;
}

/**
 * 生成普通页码按钮
 *
 * @param  string $url
 * @param  int    $page
 * @return string
 */
protected function getPageLinkWrapper($url, $page)
{
    if ($page == $this->currentPage()) {
        return $this->getActivePageWrapper($page);
    }

    return $this->getAvailablePageWrapper($url, $page);
}

}

文章题目：thinkphp5分页样式修改
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