1
我的程序旨在根据特定关键字在字符串内搜索图片url。它实际上工作正常,唯一的问题是“搜索未找到”错误。 由于某些原因,它的代码没有得到这个“if”,并且如果没有找到匹配(last if),不会返回任何错误。在字符串中查找图片url
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Text.RegularExpressions;
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
using (WebClient client = new WebClient())
{
int count = 0;
Regex SearchItem = new Regex("http://.+?\\.jpg");
string SearchValue = "fgdfgdf";
string htmlCode = "fsdflkjsdfkjsdfkjdsflkhttp://www.dssdtanya.jpgfsdf;ldsmfs;dlfms;dmfs";
Match matches = SearchItem.Match(htmlCode);
while (matches.Success)
{
string test = matches.ToString();
if (test.Contains(SearchValue))
{
count++;
Console.WriteLine("Result #{0}: '{1}' found in the source code at position {2}.",count, matches.Value, matches.Index);
matches = matches.NextMatch();
}
}
Console.WriteLine(count);
if (count == 0) { Console.WriteLine("search not found."); }
Console.ReadKey();
}
}
}
}
这可能会帮助您http://stackoverflow.com/questions/6172748/regular-expression-for-image-url – Vivekh