如何字符串中所有链接都加上target="_blank"

fisherboy 2009-09-07 09:25:18

s="aaaa<a href=""http://www.baidu1.com"" target=""_blank"" onclick=""javascript:if(2>1)alert(10)"">百度</a>aaaaaaaa"
s=s&"aaaa<a href=""http://www.baidu2.com"" target=""_self"">谷歌</a>aaaaaaaa"
s=s&"aaaa<a href=""http://www.baidu3.com"">雅虎</a>aaaaaaaa"


如上代码所示。
字符串s中有很多代码,包括数量不定的html链接代码<a href=...>...</a>,(其实是接受从编辑器提交过来的内容,比如添加新闻时的内容字段)

上面这段代码,将要显示在我的网页前台,
我想要让代码中所有<a></a>链接都在新窗口打开,
所以我的思路是,替换或增加所有<a>,使得target="_blank"。

我的问题是
1,有没有不要 替换/增加 target="_blank"的方法?(不能用base,因为有些地方比如我的导航,我还是希望在本窗口打开。)

2,如果采用处理字符串的方式,请问有什么便捷的方法?比如正则表达式。
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召耳先生 2009-09-08
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[Quote=引用 4 楼 wansai00 的回复:]
<head>
......
<base target="_blank" />
......
</head>
[/Quote]


学习了
xdxxlh 2009-09-08
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4楼正解。
直接在<head>与</head>标签之间加上<base target="_blank" /> 即默认新窗口打开链接,不用设置页面中的链接了。
wansai00 2009-09-07
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<head>
......
<base target="_blank" />
......
</head>
hookee 2009-09-07
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s="aaaa<a href=""http://www.baidu1.com"" target=""_blank"" onclick=""javascript:if(2>1)alert(10)"">百度</a>aaaaaaaa"
s=s&"aaaa<a href=""http://www.baidu2.com"" target=""_self"">谷歌</a>aaaaaaaa"
s=s&"aaaa<a href=""http://www.baidu3.com"">雅虎</a>aaaaaaaa"

Set re = New RegExp
With re
.Global = True
.IgnoreCase = True
.MultiLine = True
.Pattern = "(<a [^>]+)(target=""[^""]+"")([^>]*>)"
s = .Replace(s, "$1$3")
.Pattern = "(<a )([^>]+>)"
s = .Replace(s, "<a target=""_blank"" $2")
End With

Response.Write s
chinabh 2009-09-07
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看下这篇文章,可能对你有帮助,是关于JS设置TARGET属性
http://www.bhcode.net/article/20090907/5542.html
fisherboy 2009-09-07
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如果是处理字符串,那将是非常麻烦的一件事情。因为s="........"串中的字符非常不规则。

很不好取定<a ></a>什么时候开始,什么时候结束。
本文主要是在菜鸟笔记上的html教程的笔记或者总结,主要给自己查询; 参考链:http://www.runoob.com/ HTML 教程超文本标记语言(英语:HyperText Markup Language,简称:HTML)是一种用于创建网页的标准标记语言。 菜鸟教程(</a></div><div data-report-view="{"mod":"popu_645","index":"5","dest":"https://blog.csdn.net/z69183787/article/details/81740803","strategy":"2~default~OPENSEARCH~activity","extra":"{\"utm_medium\":\"distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default\",\"dist_request_id\":\"1715502777266_38348\"}","spm":"1035.2023.3001.6557"}" class="list-item" data-v-ca2d15ac><div class="recommend-title" data-v-ca2d15ac><img 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data-report-click="{"mod":"popu_645","index":"5","dest":"https://blog.csdn.net/z69183787/article/details/81740803","strategy":"2~default~OPENSEARCH~activity","extra":"{\"utm_medium\":\"distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default\",\"dist_request_id\":\"1715502777266_38348\"}","spm":"1035.2023.3001.6557"}" data-report-query="spm=1035.2023.3001.6557&utm_medium=distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default&depth_1-utm_source=distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default" class="title" data-v-ca2d15ac>正则 ?《= 和 ?= 的用法</a></div> <a target="_blank" href="https://blog.csdn.net/z69183787/article/details/81740803" data-report-click="{"mod":"popu_645","index":"5","dest":"https://blog.csdn.net/z69183787/article/details/81740803","strategy":"2~default~OPENSEARCH~activity","extra":"{\"utm_medium\":\"distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default\",\"dist_request_id\":\"1715502777266_38348\"}","spm":"1035.2023.3001.6557"}" data-report-query="spm=1035.2023.3001.6557&utm_medium=distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default&depth_1-utm_source=distribute.pc_relevant_bbs_down_v2.none-task-blog-2~default~OPENSEARCH~activity-5-81740803-bbs-320012456.264^v3^pc_relevant_bbs_down_v2_default" class="desc" data-v-ca2d15ac>https://www.cnblogs.com/whaozl/p/5462865.html   文本:  &lt;br/&gt;您好,非常好,很开心认识你 &lt;br/&gt;&lt;a <em>target</em>=<em>_blank</em> href="www.baidu.com"&gt;百度一下&lt;/a&gt;百度才知道 &lt;br/&gt;&lt;a 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