逍遥求救啊！！！急！！！！

[lhr8577]

http://www.100to.com/item.htm?id=2532774801
提取这个页面的<strong id="J_StrPrice">58.00</strong>元
中的价格：58.00

[兔子-顾问]

try

string result = Regex.Match(yourHtml,@"(?<=<strong id=""J_StrPrice"">)\d+(\.\d+)?").Value;

[lhr8577]

[Quote=引用 1 楼 wuyazhe 的回复:]
try

C# code
string result = Regex.Match(yourHtml,@"(?<=<strong id=""J_StrPrice"">)\d+(\.\d+)?").Value;
[/Quote]
Regex这是？

[wuhuabucai]

[Quote=引用 1 楼 wuyazhe 的回复:]
try

C# code
string result = Regex.Match(yourHtml,@"(?<=<strong id=""J_StrPrice"">)\d+(\.\d+)?").Value;
[/Quote]
Y!

[兔子-顾问]

正则表达式，
完整写法就是这样

string html = Encoding.GetEncoding("GBK").GetString(new System.Net.WebClient().DownloadData("http://www.100to.com/item.htm?id=2532774801"));
string result = System.Text.RegularExpressions.Regex.Match(html, @"(?<=<strong id=""J_StrPrice"">)\d+(\.\d+)?").Value;

[lhr8577]

谢谢2位如此关注！！！