一个正则表达式的问题

第二场雪

1. 
   
2. $_=$myecho;
   
3. s/<div\s*class=\"editor_text\">(.*?)<\/div>/$1/;
   
4. print $_;
   

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想找出页面里的这个html标记里的内容
怎么实验都不行

$myecho内容为

1. 
   
2. <td class="editor_colornormal" onClick="discuzcode('forecolor', 'PaleTurquoise')
   
3. " unselectable="on" onMouseOver="colorContext(this, 'mouseover')" onMouseOut="co
   
4. lorContext(this, 'mouseout')"><div style="background-color: PaleTurquoise" unsel
   
5. ectable="on"></div></td>
   
6. <td class="editor_colornormal" onClick="discuzcode('forecolor', 'LightBlue')" un
   
7. selectable="on" onMouseOver="colorContext(this, 'mouseover')" onMouseOut="colorC
   
8. ontext(this, 'mouseout')"><div style="background-color: LightBlue" unselectable=
   
9. "on"></div></td>
   
10. <td class="editor_colornormal" onClick="discuzcode('forecolor', 'Plum')" unselec
    
11. table="on" onMouseOver="colorContext(this, 'mouseover')" onMouseOut="colorContex
    
12. t(this, 'mouseout')"><div style="background-color: Plum" unselectable="on"></div
    
13. ></td>
    
14. <td class="editor_colornormal" onClick="discuzcode('forecolor', 'White')" unsele
    
15. ctable="on" onMouseOver="colorContext(this, 'mouseover')" onMouseOut="colorConte
    
16. xt(this, 'mouseout')"><div style="background-color: White" unselectable="on"></d
    
17. iv></td>
    
18. </tr><tr>
    
19. <div class="editor_text">
    
20. <textarea name="message" rows="10" cols="60" style="width:99%; height:250px;font
    
21. -size:14px;font-family:Arial;padding:5px;" id="posteditor_textarea" onSelect="ja
    
22. vascript: storeCaret(this);" onClick="javascript: storeCaret(this);" onKeyUp="ja
    
23. vascript:storeCaret(this);" onKeyDown="ctlent(event);" tabindex="100"></br>
    
24. -------- Forwarded Messages --------</br>
    
25. </br>
    
26. </br><div><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin:
    
27. 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
    
28. From: &quot;test&quot; [email]test@extmail.org[/email] </br>
    
29. To: [email]testyou@111.com[/email] </br>
    
30. </br>
    
31. 
    
32. HOME = /home/domains/extmail.org/test<br>loginTime = 1192118532<br>OPTIONS = <br
    
33. >mailQuota = 5242880S<br>IPaddr = 192.168.1.2<br>Nosameip = 1<br>User = test@ext
    
34. mail.org<br>MAILDIR = /home/domains/extmail.org/test/Maildir/
    
35. 
    
36. 
    
37. </blockquote></div></br>
    
38. 
    
39. </textarea></div>
    

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kamixp

s///是替换用的，你要找出这个标记不行
你用

1. /<div\s*class=\"editor_text\">(.*?)<\/div>/ and print $1;

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不过结果还不是你要的，结果大概是

1. <textarea name="message" rows="10" cols="60" style="width:99%; height:250px;font
   
2. -size:14px;font-family:Arial;padding:5px;" id="posteditor_textarea" onSelect="ja
   
3. vascript: storeCaret(this);" onClick="javascript: storeCaret(this);" onKeyUp="ja
   
4. vascript:storeCaret(this);" onKeyDown="ctlent(event);" tabindex="100"></br>
   
5. -------- Forwarded Messages --------</br>
   
6. </br>
   
7. </br><div><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin:
   
8. 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
   
9. From: &quot;test&quot; [email]test@extmail.org[/email] </br>
   
10. To: [email]testyou@111.com[/email] </br>
    
11. </br>
    
12. 
    
13. HOME = /home/domains/extmail.org/test<br>loginTime = 1192118532<br>OPTIONS = <br
    
14. >mailQuota = 5242880S<br>IPaddr = 192.168.1.2<br>Nosameip = 1<br>User = test@ext
    
15. mail.org<br>MAILDIR = /home/domains/extmail.org/test/Maildir/
    
16. 
    
17. 
    
18. </blockquote></div></br>
    
19. 
    
20. </textarea>

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因为正则表达式是贪婪的，你还得改下匹配模式，进行最小匹配

bood

可能是因为有换行把，"."一般情况下是不匹配换行的，需要加上s修饰符
s/<div\s*class=\"editor_text\">(.*?)<\/div>/$1/s;

第二场雪

谢谢楼上2位,解决啦~~~

的确是需要作为单行处理就是s修饰,另外就是贪婪模式

非常感谢