这样的正则表达式怎么写呢？

Question

[h-t]{4}://[d-t]{7}.[e-y]{5}.[c-o]{3}/[a-u]{9}/[\d]{8}/[\d]{8}.[g-p]{3}

Answer 1

[h-t]{4}://[d-t]{7}.[e-y]{5}.[c-o]{3}/[a-u]{9}（/[\d]{8}）{2}.[g-p]{3}

Answer 2

这个格式太固定了，主要是以http开头，以（jpg、png、gif、bmp）结尾，这个怎么样写呢

Answer 3

string pattern = @"http\S*(jpg|png|gif|bmp)";
            string result = Regex.Matches("22http://djpglhttpfbmpdd", pattern)[0].ToString();

Answer 4

string pattern = @"http\S*(jpg|png|gif|bmp)";
            string result = Regex.Matches("22http://djpglhttpfbmpdd", pattern)[0].ToString();必须是开头和结尾的话就加上\b和$,像这样
string pattern = @"\bhttp\S*(jpg|png|gif|bmp)$";
            string target = "http://djpglhttpfbmpddfgif";
            string result;
            if (Regex.IsMatch(target, pattern))
            {
                result = Regex.Matches(target, pattern)[0].ToString();
            }