I used a struct
public struct stuff
{
public int ID;
public int quan;
}
in List<stuff> stuff = new List<stuff>();
How i can check the list already have a stuff "where ID = 1"?
您可以非常轻松地使用LINQ
bool res = stuff.Any(c => c.ID == 1);
bool isContains = stuff.Any(x => x.ID == 1);
if(stuf.Select(x => x.id).Contains(1))
{
//Do Stuff
}
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