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C#正则表达式则如何验证url?

String regEx = "^(http|https|ftp)\\://([a-zA-Z0-9\\.\\-]+(\\:[a-zA-" + "Z0-9\\.&%\\$\\-]+)*@)?((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{" + "2}|[1-9]{1}[0-9]{1}|[1-9])\\.(25[0-5]|2[0-4][0-9]|[0-1]{1}" + "[0-9]{2}|[1-9]{1}[0-9]{1}|[1-...

using System.Text.RegularExpressions; using System.Collections.Generic; public static long GetHref(string html) { List links = new List(); MatchCollection matches = Regex.Matches(html, @"(href|src)=""(?\S+?(jpg|gif|exe))""", Re...

正则可以提取所有URL的埃 string web_code; MatchCollection ms = new Regex("(?

Regex reg=new Regex(@"""pic_url"":""(\S*?)""");//这里的冒号应该是用半角的吧?var m=reg.Match(str);//str是包含上面url的字符串if(m.Success){ Console.Write(m.Groups[1].Value );}using System.Text.RegularExpressions;

string str="(?

string url = " http://www.contoso.com:8080/letters/readme.html"; Regex r = new Regex(@"^(?\w+)://[^/]+?(?:\d+)?/", RegexOptions.Compiled); Console.WriteLine(r.Match(url).Result("${proto}${port}")); //url换成你自己的地址就好

/// /// 递归展开Bom /// /// 所有数据集 /// 根节点物料 /// 根树节点 private void ResolveSubTree(DbSet listBom, TbBom bom, TreeNode treeNode) { //获取所有bom节点物料代码为父节点代码的物料 List subListClone = listBom.Where(p => p...

//是否是用户名:\w表示数字,英文大小写字母,下划线的组合,即匹配包括下划线的单词字符 public bool IsUsername(string name) { Regex rgx=new Regex("^[\\w]+$"); return rgx.IsMatch(name); } //\W表示非单词字符,密码的字符一般根据实际需...

[csharp] using System; using System.Text.RegularExpressions; namespace SG_VQCDataCollection { /// /// 通过Framwork类库中的Regex类实现了一些特殊功能数据检查 /// public class MetarnetRegex { private static MetarnetRegex instance ...

(?![\da-z]+$)(?![\dA-Z]+$)(?![a-zA-Z]+$)(?![a-z!@#$]+$)(?![A-Z!@#$]+$)(?![\d!@#$]+$)^[a-zA-Z\d!@#$]{6,20}$ 特殊字符目前只用了!@#$,如果还要加其他的, 你再往里加

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