利用正则表达式将html网页数据变成Web Service

@"<td height=@#20@#><p align=@#right@#>(?<buynotes>\d*.?\d*)(&nbsp)+.?</td>\s*" +

@"<td height=@#20@#><p align=@#right@#>(?<sell>\d*.?\d*)(&nbsp)+.?</td>\s*" +

@"<td height=@#20@#><p align=@#right@#>(?<base>\d*.?\d*)(&nbsp)+.?</td>\s*"

, RegexOptions.Compiled);

for( Match m = expr.Match(webcontent) ; m.Success ; m=m.NextMatch() )

{

string key;

DataRow row = dt.NewRow();

row["Currency"] = m.Groups["currency"];

key = m.Groups["bankbuytt"].ToString();

row["BankBuyTT"] = key.Length > 0 ? Convert.ToDouble( key )/100 : 0;

key = m.Groups["buynotes"].ToString();

row["BankBuyNotes"] = key.Length > 0 ? Convert.ToDouble( key )/100 : 0;