new { Inv = item.Inv, Count = item.Count }

var testData = new[]
{
    new {Name="Test1", Top=1},
    new {Name="Test2", Top=2},
    new {Name="Test3", Top=3},
    new {Name="Test4", Top=4},
    new {Name="Test5", Top=5},
    new {Name="Test6", Top=6},
    new {Name="Test7", Top=7},
    new {Name="Test8", Top=8},
    new {Name="Test9", Top=9}
};

var str1 = "Mike,12|Tom,5|Jhon,7";
var str2 = "Sam,80|Eric,60";

var memberArray = str1
    .Split('|')
    .Select(m => new {ID = m.Split(',')[0], Score = m.Split(',')[1]})
    .Concat(str2
        .Split('|')
        .Select(m => new {ID = m.Split(',')[0], Score = m.Split(',')[1]}))
    .ToArray();

foreach (var item in memberArray)
{
    Debug.Log("ID: " + item.ID + " Score: " + item.);
}