如何在不同的行上查找和替换固定的3个字符（Notepad ++）

Question

I have that text :

↓
<button id="upbtn" class="btnx">→</button><br><br>
<button id="downbtn" class="btny">➤</button><br>
<a href="#">←</a><br><br><br>
<a href="#">←</a><br><br><br>

And i want :

↓
<button id="upbtn" class="btnx">»</button><br><br>
<button id="downbtn" class="btny">➤</button><br>
<a href="#">«</a><br><br><br>
<a href="#">«</a><br><br><br>

I used to multi line find replace on notepad++ and used regular expression but failed.

Answer 1

When using regular expressions you need to use either \\n or \\r\\n to target line breaks, depending on your platform or editor settings.

Here is an example using \\r\\n

Find

↓\r\n<button id="upbtn" class="btnx">→</button><br><br>\r\n<button id="downbtn" class="btny">➤</button><br>\r\n<a href="#">←</a><br><br><br>\r\n<a href="#">←</a><br><br><br>

Replace

↓\r\n<button id="upbtn" class="btnx">»</button><br><br>\r\n<button id="downbtn" class="btny">➤</button><br>\r\n<a href="#">«</a><br><br><br>\r\n<a href="#">«</a><br><br><br>

This is all assuming that your text is exactly as presented in your question