匹配img標籤及img 的src的正則表示式
text中img標籤:
<IMG height=375 alt="" src="http://www.mycreative.com.cn/upload/2010/4/tiancheng2.jpg" width=500>
<IMG alt="" src="http://www.mycreative.com.cn/upload/2010/4/s2.jpg">
匹配img標籤的正則表示式:string Pattern = @"<img/s+[^>]*/s*src/s*=/s*([']?)(?<url>/S+)'?[^>]*>";
匹配img 的src的正則表示式:string Pattern = @"(?<=src/s*=/s*[/'/""]?)(?<url>[http/:////]?[^'""]+)";
匹配結果:http://www.mycreative.com.cn/upload/2010/4/tiancheng2.jpg
獲取text中img的src地址:
string Pattern = @"(?<=src/s*=/s*[/'/""]?)(?<url>[http/:////]?[^'""]+)";
Regex reg = new Regex(Pattern, RegexOptions.IgnoreCase);
MatchCollection colMatch = reg.Matches(text文字);
StringBuilder strImage = new StringBuilder();
if (colMatch.Count > 0)
{
foreach (Match m in colMatch)
{
strImage.Append(m.Value).Append(',');
}
}
匹配text的img,並給img標籤加上鍊接
string Pattern = @"<img/s+[^>]*/s*src/s*=/s*([']?)(?<url>/S+)'?[^>]*>";
Regex reg = new Regex(Pattern, RegexOptions.IgnoreCase);
MatchEvaluator myEvaluator=new MatchEvaluator(RepleaceReg);
string content = reg.Replace(text文字), myEvaluator);
RepleaceReg函式:
private string RepleaceReg(Match m)
{
string result=m.ToString();
if (albumid != -1)
{
result="<a href=ImageShow.aspx?albumid=" + albumid + ">" + m + "</a>";
}
return resu