和回复 同时更新用户评论数 此处也需要删除待验证和回收站回复数据
function comment_delete_by_tid($tid)
{
$thread = well_thread_read_cache($tid);
if (empty($thread)) return FALSE;
$posts = $thread['posts'];
if (0 == $posts) return FALSE;
$size = 1000;
if ($posts > $size) {
$n = ceil($posts / $size);
} else {
$n = $posts;
}
for ($i = 0; $i <= $n; ++$i) {
// 查询回复小表(仅通过审核的评论) 该主题回复 pid
$arr = comment_pid__find(array('tid' => $tid), array(), 1, $size, '');
if (empty($arr)) return FALSE;
$pidarr = array();
$uidarr = array();
foreach ($arr as $val) {
$pidarr[] = $val['pid'];
isset($uidarr[$val['uid']]) ? $uidarr[$val['uid']] += 1 : $uidarr[$val['uid']] = 1;
}
$uids = array();
$user_update = array();
foreach ($uidarr as $_uid => $n) {
$uids[] = $_uid;
$user_update[$_uid]['comments-'] = $n;
}
user_big_update(array('uid' => $uids), $user_update);
// 删除所有回复和小表
comment_delete($pidarr);
}
return $posts;
}
/*
* @param $tids 数组array(1,2,3)
* @param $n 删除的总评论数量
* @return int 返回删除的数量
*/
function comment_delete_by_tids($tids, $n)
{
// 查询回复小表(仅通过审核的评论) 该主题回复 pid
$arrlist = comment_pid__find(array('tid' => $tids), array('pid' => 1), 1, $n, '');
if (!$arrlist) return 0;
$pids = array();
$uidarr = array();
foreach ($arrlist as $val) {
$pids[] = $val['pid'];
isset($uidarr[$val['uid']]) ? $uidarr[$val['uid']] += 1 : $uidarr[$val['uid']] = 1;
}
comment_pid_delete($pids);
comment__delete(array('pid' => $pids));
// 删除附件
well_attach_delete_by_pid($pids);
$uids = array();
$update = array();
foreach ($uidarr as $_uid => $n) {
$uids[] = $_uid;
$update[$_uid] = array('comments-' => $n);
}
// 更新用户评论数
user_big_update(array('uid' => $uids), $update);
return count($pids);
}
function comment_delete_by_pids($pids)
{
$commentlist = comment__find(array('pid' => $pids), array('pid' => -1), 1, count($pids));
$pidarr = array();
$uidarr = array();
$tidarr = array();
foreach ($commentlist as $comment) {
// 每个栏目下的回复数
$pidarr[] = $comment['pid'];
// uid
isset($uidarr[$comment['uid']]) ? $uidarr[$comment['uid']] += 1 : $uidarr[$comment['uid']] = 1;
// tid
isset($tidarr[$comment['tid']]) ? $tidarr[$comment['tid']] += 1 : $tidarr[$comment['tid']] = 1;
}
unset($postist);
if (!empty($pidarr)) {
// 删除附件
well_attach_delete_by_pid($pidarr);
// 删除主表
comment__delete(array('pid' => $pidarr));
// 删除小表
comment_pid_delete($pidarr);
runtime_set('comments-', count($pidarr));
}
// 更新用户评论数
if (!empty($uidarr)) {
$uids = array();
$update = array();
foreach ($uidarr as $_uid => $n) {
$uids[] = $_uid;
$update[$_uid] = array('credits-' => $n);
}
user_big_update(array('uid' => $uids), $update);
}
// 更新主题回复数
if (!empty($tidarr)) {
$tids = array();
$update = array();
foreach ($tidarr as $_tid => $n) {
$tids[] = $_tid;
$update[$_tid] = array('posts-' => $n);
}
thread_big_update(array('tid' => $tids), $update);
}
}
function comment_format_by_tid(&$post)
{
global $conf, $uid, $gid;
if (empty($post)) return;
$post['create_date_fmt'] = humandate($post['create_date']);
//$post['message'] = stripslashes(htmlspecialchars_decode($post['message']));
$user = user_read_cache($post['uid']);
$post['username'] = array_value($user, 'username');
$post['user_avatar_url'] = array_value($user, 'avatar_url');
$post['user'] = $user ? $user : user_guest();
isset($post['floor']) || $post['floor'] = 0;
// 权限判断
$post['allowupdate'] = ($uid == $post['uid']) || forum_access_mod($post['fid'], $gid, 'allowupdate');
$post['allowdelete'] = (group_access($gid, 'allowuserdelete') AND $uid == $post['uid']) || forum_access_mod($post['fid'], $gid, 'allowdelete');
$post['user_url'] = url('user-' . $post['uid'] . ($post['uid'] ? '' : '-' . $post['pid']));
if ($post['files'] > 0) {
list($attachlist, $imagelist, $post['filelist']) = well_attach_find_by_pid($post['pid']);
// 使用图床 评论使用图床，mysql会过多，写死链接到内容是减轻mysql的过多的方法
if (2 == $conf['attach_on']) {
foreach ($imagelist as $key => $attach) {
$url = $conf['upload_url'] . 'website_attach/' . $attach['filename'];
// 替换成图床
$post['message'] = FALSE !== strpos($post['message'], $url) && $attach['image_url'] ? str_replace($url, $attach['image_url'], $post['message']) : $post['message'];
}
}
} else {
$post['filelist'] = array();
}
$post['classname'] = 'post';
}
function comment_format(&$post)
{
global $conf, $uid, $gid, $forumlist;
if (empty($post)) return;
$forum = $post['fid'] ? forum_read($post['fid']) : '';
$thread = well_thread_read_cache($post['tid']);
if ($thread) {
//$post['fid'] = $thread['fid'];
$post['closed'] = $thread['closed'];
$post['subject'] = $thread['subject'];
$post['url'] = $thread['url'];
} else {
$post['closed'] = 0;
$post['subject'] = lang('thread_not_exists');
$post['url'] = '';
}
$post['create_date_fmt'] = humandate($post['create_date']);
//$post['message'] = stripslashes(htmlspecialchars_decode($post['message']));
$user = user_read_cache($post['uid']);
$post['username'] = array_value($user, 'username');
$post['user_avatar_url'] = array_value($user, 'avatar_url');
$post['user'] = $user ? user_safe_info($user) : user_guest();
isset($post['floor']) || $post['floor'] = 0;
// 权限判断
$post['allowupdate'] = 2 == array_value($forum, 'comment', 0) && ($uid == $post['uid'] || forum_access_mod($post['fid'], $gid, 'allowupdate'));
$post['allowdelete'] = group_access($gid, 'allowuserdelete') && $uid == $post['uid'] || forum_access_mod($post['fid'], $gid, 'allowdelete');
$post['user_url'] = url('user-' . $post['uid'] . ($post['uid'] ? '' : '-' . $post['pid']));
if ($post['files'] > 0) {
list($attachlist, $imagelist, $filelist) = well_attach_find_by_pid($post['pid']);
// 使用图床 评论使用图床，mysql会过多，写死链接到内容是减轻mysql的过多的方法
if (2 == $conf['attach_on']) {
foreach ($imagelist as $key => $attach) {
$url = $conf['upload_url'] . 'website_attach/' . $attach['filename'];
// 替换成图床
$post['message'] = FALSE !== strpos($post['message'], $url) && $attach['image_url'] ? str_replace($url, $attach['image_url'], $post['message']) : $post['message'];
}
}
$post['filelist'] = $filelist;
} else {
$post['filelist'] = array();
}
$post['classname'] = 'post';
}
function comment_format_message(&$val)
{
global $conf;
if (empty($val)) return;
// 使用云储存
if (1 == $conf['attach_on'] && 1 == $val['attach_on']) {
$val['message'] = str_replace('="upload/', '="' . file_path($val['attach_on']), $val['message']);
} elseif (2 == $conf['attach_on'] && 2 == $val['attach_on']) {
// 使用图床
list($attachlist, $imagelist, $filelist) = well_attach_find_by_tid($val['tid']);
foreach ($imagelist as $key => $attach) {
$url = $conf['upload_url'] . 'website_attach/' . $attach['filename'];
// 替换成图床
$val['message'] = FALSE !== strpos($val['message'], $url) && $attach['image_url'] ? str_replace($url, $attach['image_url'], $val['message']) : $val['message'];
}
} else {
$val['message'] = str_replace('="upload/', '="' . file_path($val['attach_on']), $val['message']);
}
//$val['message'] = stripslashes(htmlspecialchars_decode($val['message']));
}
// 把内容中使用了云储存的附件链接替换掉
function comment_message_replace_url($pid, $message)
{
global $conf;
if (0 == $conf['attach_on']) {
$message = FALSE !== strpos($message, '="../upload/') ? str_replace('="../upload/', '="upload/', $message) : $message;
$message = FALSE !== strpos($message, '="/upload/') ? str_replace('="/upload/', '="upload/', $message) : $message;
} elseif (1 == $conf['attach_on']) {
// 使用云储存
$message = str_replace('="' . $conf['cloud_url'] . 'upload/', '="upload/', $message);
} elseif (2 == $conf['attach_on']) {
// 使用图床 评论使用图床，mysql会过多，写死链接到内容是减轻mysql的过多的方法
list($attachlist, $imagelist, $filelist) = well_attach_find_by_pid($pid);
foreach ($imagelist as $key => $attach) {
$url = $conf['upload_url'] . 'website_attach/' . $attach['filename'];
// 替换回相对链接
$message = $attach['image_url'] && FALSE !== strpos($message, $attach['image_url']) ? str_replace($attach['image_url'], $url, $message) : $message;
}
}
return $message;
}
function comment_filter($val)
{
unset($val['userip']);
return $val;
}
function comment_highlight_keyword($str, $k)
{
$r = str_ireplace($k, '' . $k . '', $str);
return $r;
}
// 
//
function comment_message_format(&$s)
{
if (xn_strlen($s) < 100) return;
$s = preg_replace('#.*?
#is', '', $s);
$s = str_ireplace(array('
', '
', '
', '', '', '', '', '' . ''), "\r\n", $s);
$s = str_ireplace(array(' '), " ", $s);
$s = strip_tags($s);
$s = preg_replace('#[\r\n]+#', "\n", $s);
$s = xn_substr(trim($s), 0, 100);
$s = str_replace("\n", '
', $s);
}
// 对内容进行引用
function comment_quote($quotepid)
{
$quotepost = comment_read($quotepid);
if (empty($quotepost)) return '';
$uid = $quotepost['uid'];
$s = $quotepost['message'];
$s = comment_brief($s, 100);
$userhref = url('user-' . $uid);
$user = user_read_cache($uid);
$r = '
' . $user['username'] . '
' . $s . '
';
return $r;
}
// 获取内容的简介 0: html, 1: txt; 2: markdown; 3: ubb
function comment_brief($s, $len = 100)
{
$s = strip_tags($s);
$s = htmlspecialchars($s);
$more = xn_strlen($s) > $len ? ' ... ' : '';
$s = xn_substr($s, 0, $len) . $more;
return $s;
}
?>
使用PyTorch进行假钞识别-Linux大棚
使用PyTorch进行假钞识别
假钞是一种常见的金融欺诈行为，对经济安全和金融秩序造成严重威胁。为了解决这个问题，现代技术可以利用深度学习和计算机视觉技术来自动检测和识别假钞。本文将介绍如何使用PyTorch构建一个假钞识别模型，并提供相应的源代码。
- 数据集准备
在开始之前，我们需要准备一个包含真实和假钞图像的数据集。可以从各种来源获得这些图像，包括公开数据集、网络搜索和自己采集。确保数据集中包含足够数量的真实和假钞样本，并将其分为训练集和测试集。
- 构建深度学习模型
我们将使用PyTorch构建一个卷积神经网络(CNN)模型来进行假钞识别。以下是一个简单的CNN模型示例：
import torch
import torch.nn as nn
import torch.optim as optimclass FakeNoteClassifier(nn.Module)
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