我在powershell中使用正则表达式有点问题。我的REGEX仅适用于一行。我需要多行工作。
例如html：
<li> test </li>
</ul>
我希望REGEX采取一切措施，包括“/ ul＆gt;”。我的建议是：
'(^.*<li>.*</ul>)'
但它没有用。它甚至可能吗？感谢。
答案 0 :(得分：6)
取决于您正在使用的正则表达式方法。
如果您使用.NET Please Create a notepade++ file named it dbconnection.php and copy this code
<?php
mysql_connect('localhost','root','');
mysql_select_db('database_name');
?>
----------------------------------------------------------
Please Create a notepade++ file named it index.php and copy this code
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title>Your Title</title>
<meta name = "viewport" content = "width=device-width,initial-scale=1" />
<link rel="shortcut icon" type = "image/jpg" href="images.jpg" />
<link rel="stylesheet" type = "text/css" href = "css/style.css" />
<link rel="stylesheet" type = "text/css" href = "bootstrap/css/bootstrap.css" />
<link rel="stylesheet" type = "text/css" href = "bootstrap/css/bootstrap.min.css" />
</head>
<body>
<div id = "frmNC_content">
<div id = "frmNC_header">
<div id = "frmNC_headertext">Find Contact Form</div>
</div>
<div id = "frmNC_body">
<table width = "100%" border = "0" style = "margin-top:20px;">
<form name = "frmEditContact" action = "" method = "post">
<tr>
<th width = "15%" style = "text-align:center;">Name : </th>
<th width = "30%"><input type = "text" name = "txtName" class = "form-control imput-sm"/></th>
<th width = "15%" style = "text-align:center;">Mobile No : </th>
<th width = "30%"><input type = "text" name = "txtMobileNo" class = "form-control imput-sm"/></th>
<th width = "10%" style = "text-align:center;"><input type = "submit" name = "btnSearch" value = "Search" class = "btn btn-info"/></th>
</tr>
</form>
</table>
<table width = "100%" border = "1" style = "border-collapse:collapse;margin-top:20px;">
<tr height = "35px">
<th width = "20%" style = "padding-left:10px;background-color:#6495ED;">Name</th>
<th width = "20%" style = "padding-left:10px;background-color:#6495ED;">Address</th>
<th width = "10%" style = "padding-left:10px;background-color:#6495ED;">Mobile No</th>
<th width = "20%" style = "padding-left:10px;background-color:#6495ED;">Office Name</th>
<th width = "10%" style = "padding-left:10px;background-color:#6495ED;">Office No</th>
<th width = "10%" style = "padding-left:10px;background-color:#6495ED;">Other No</th>
<th width = "10%" style = "padding-left:10px;background-color:#6495ED;">Status</th>
</tr>
<?php
if(isset($_POST['btnSearch']))
{
if(isset($_POST['txtName']) && $_POST['txtMobileNo']=="")
{
$name = mysql_real_escape_string($_POST['txtName']);
require('dbconnection.php');
$sql = "SELECT * FROM `tbl_new_contact` WHERE name = '$name' AND user_code = '$_SESSION[user_code]'";
$query = mysql_query($sql);
while($row = mysql_fetch_array($query)):
echo "<tr height = '25px'>";
echo "<td style = 'padding-left:10px;'>".$row['name']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['address']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['mob_no']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['office_name']."</td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[office_number]'>".$row['office_number']."</a></td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[other_mob_no]'>".$row['other_mob_no']."</a></td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[mob_no]'>
<button class = 'btn btn-info'><span class='glyphicon glyphicon-phone'></span></button>
</a></td>";
echo "</tr>";
endwhile;
}
else if(isset($_POST['txtMobileNo']) && $_POST['txtName']=="")
{
$mobileNo = mysql_real_escape_string($_POST['txtMobileNo']);
require('dbconnection.php');
$sql = "SELECT * FROM `tbl_new_contact` WHERE mob_no = '$mobileNo' AND user_code = '$_SESSION[user_code]'";
$query = mysql_query($sql);
while($row = mysql_fetch_array($query)):
echo "<tr height = '25px'>";
echo "<td style = 'padding-left:10px;'>".$row['name']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['address']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['mob_no']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['office_name']."</td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[office_number]'>".$row['office_number']."</a></td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[other_mob_no]'>".$row['other_mob_no']."</a></td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[mob_no]'>
<button class = 'btn btn-info'><span class='glyphicon glyphicon-phone'></span></button>
</a></td>";
echo "</tr>";
endwhile;
}
}
else
{
require('dbconnection.php');
$sql = "SELECT * FROM `tbl_new_contact` WHERE user_code = '$_SESSION[user_code]'";
$query = mysql_query($sql);
while($row = mysql_fetch_array($query)):
echo "<tr height = '25px'>";
echo "<td style = 'padding-left:10px;'>".$row['name']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['address']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['mob_no']."</td>";
echo "<td style = 'padding-left:10px;'>".$row['office_name']."</td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[office_number]'>".$row['office_number']."</a></td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[other_mob_no]'>".$row['other_mob_no']."</a></td>";
echo "<td style = 'padding-left:10px;'><a href = 'tel:$row[mob_no]'>
<button class = 'btn btn-info'><span class='glyphicon glyphicon-phone'></span></button>
</a></td>";
echo "</tr>";
endwhile;
}
?>
</table>
</div>
<div id = "frmNC_footer"></div>
</div>
</body>
</html>
，则可以在第三个参数中定义其他Regex::Match选项。在这里使用regex：
[System.Text.RegularExpressions.RegexOptions]::Singleline如果您要使用Select-String cmdlet，则必须在$html =
@'
<li> test </li>
</ul>
'@
$regex = '(^.*<li>.*\</ul>)'
[regex]::Match($html,$regex,[System.Text.RegularExpressions.RegexOptions]::Singleline).Groups[0].Value
中指定单行选项(?s)：
regex答案 1 :(得分：1)
使用多行单行正则表达式，-match：
$string = @'
notmached
<li> test </li>
</ul>
notmatched
'@
$regex = @'
(?ms)(<li>.*</li>.*?
\s*</ul>)
'@
$string -match $regex > $null
$matches[1]
<li> test </li>
</ul>