public int CompareTo(Object obj)
{
DateYMD dymd = (DateYMD)obj;
if (this.year > dymd.year)
{
return(1);
}
else if (this.year == dymd.year)
{
if (this.month > dymd.month)
{
return(1);
}
else if (this.month == dymd.month)
{
if (this.day > dymd.day)
{
return(1);
}
else if (this.day == dymd.day)
{
return(0);
}
}
}
return(-1);
}
//LINQ
//去重！
void YMDDistinct()
{
var list = dymlist.Distinct(new DuplicateDefine()).ToList();
DateYMD dymd1 = new DateYMD(datename1);
DateYMD dymd2 = new DateYMD(datename2);
var dateresult = list.FindAll(x => (x.CompareTo(dymd1) == 1 && x.CompareTo(dymd2) == -1)).ToList();
dateresult.Insert(0, dymd1);
dateresult.Add(dymd2);
}