double转string 小数点后边0为什么没了

Question

string[] str = specification2.Split('*');
specification2 = string.Empty;
for (int i = 0; i < str.Length; i++)
{
double outpar = 0;
if (!double.TryParse(str[i], out outpar))
{
Regex regex = new Regex("[A-Z]{1}", RegexOptions.IgnoreCase);
try { outpar = Convert.ToInt32(regex.Replace(str[i], new MatchEvaluator(OutPutMatch))); }
catch { outpar = 0; }
}
string par = outpar > 0 ? outpar.ToString() : string.Empty;

            if (i == 0) thicknessone = thicknesstwo = par;//厚
            if (i == 1) witchone = witchtwo = par;//宽
            if (i == 2) longone = longtwo = par;//长
        }

Answer 1

outpar = Convert.ToInt32
你又取整了