-
-
...; <div class="col-md-6">
<form class="form-horizontal" name="catego...
-
-
...; <div class="col-md-12">
...
-
-
...s="row">
<div class="col-md-4">
<h2>特点</h2>
<p>
&nbs...
-
-
...; <div class="col-md-12">
<h1 class="page-head-line">Course Enroll </h1>
&n...
-
-
...说明](https://www.raspberrypi.org/documentation/configuration/config-txt.md) ```bash hdmi_cvt=800 480 60 6 hdmi_group=2 hdmi_mode=87 # 设置屏幕旋转角度 display_rotate=3 ```
-
-
...$sql=mysqli_query($con,"SELECT password FROM admin where password='".md5($_POST['password'])."' && username='".$_SESSION['alogin']."'");
$num=mysqli_fetch_array($sql);
if($num>0)
{
$con=mysqli_query($con,"update admin set password='".md5($_POST['newpassword'])."', updation...
-
-
... '6.求哈希值的计算容易'
]},
'算法代表:MD5、SHA-1和SHA-2',
'SHA-2应用广泛,MD5和SHA-1存在安全隐患,不推荐使用',
]},
{'加密':[
{'共享密钥加密':[
'对称加密:加密和解密使用相同密钥',...
-
-
...; <div class="col-md-6">
<div class="form-label-group">
&...
-
-
...; <div class="col-md-6">
<...
-
-
...OST['login']))
{
$adminusername=$_POST['username'];
$pass=md5($_POST['password']);
$ret=mysqli_query($con,"SELECT * FROM admin WHERE username='$adminusername' and password='$pass'");
$num=mysqli_fetch_array($ret);
if($num>0)
{
$extra="manage-users.php";
$_SESSION['login']=$...