C#方法

if (oldDate != \"\") {

string strIssueDate = oldDate; //\"2012-09-12\";

string strMaturityDate = DateTime.Now.ToShortDateString().Trim(); //\"2012-09-18\"; if (strIssueDate != \"\" && strMaturityDate != \"\") {

string[] strStartDate = new string[] { \"\" }; string[] strEndDate = new string[] { \"\" }; //将?日¨?期¨²分¤?割?成¨¦数ºy组Á¨¦

int placeIssueDate = strIssueDate.IndexOf(\"-\", 0, strIssueDate.Length); //判D断?日¨?期¨²中D是º?否¤?有®D'-'号?

int placeMaturityDate = strMaturityDate.IndexOf(\"-\", 0, strMaturityDate.Length); //判D断?日¨?期¨²中D是º?否¤?有®D'-'号?

if (placeIssueDate == 0) {

strStartDate = new string[] { strIssueDate.Substring(0, 4), strIssueDate.Substring(4, 2), strIssueDate.Substring(6, 2) };

} else {

strStartDate = strIssueDate.Split('-'); }

if (placeMaturityDate == 0) {

strEndDate = new string[] { strMaturityDate.Substring(0, 4), strMaturityDate.Substring(4, 2), strMaturityDate.Substring(6, 2) }; } else {

strEndDate = strMaturityDate.Split('-'); }

TimeSpan tsIssueDays = new TimeSpan(); //实º¦Ì例¤y化¡¥一°?个?TimeSpan //把ã?分¤?隔?成¨¦数ºy组Á¨¦的Ì?日¨?期¨²传ä?进?DateTime中D，ê?组Á¨¦成¨¦的Ì?日¨?期¨²格?式º?如¨?：êo1/2/2001

DateTime dtIssueDate = new DateTime(int.Parse(strStartDate[0]), int.Parse(strStartDate[1]), int.Parse(strStartDate[2]));

DateTime dtMaturityDate = new DateTime(int.Parse(strEndDate[0]), int.Parse(strEndDate[1]), int.Parse(strEndDate[2]));

tsIssueDays = dtMaturityDate - dtIssueDa