匿名型別相等

匿名型別相等由 Equals 例項方法給出。如果兩個物件具有相同的型別，並且對於每個屬性具有相等的值（通過 a.Prop.Equals(b.Prop)），則它們是相等的。

var anon = new { Foo = 1, Bar = 2 };
var anon2 = new { Foo = 1, Bar = 2 };
var anon3 = new { Foo = 5, Bar = 10 };
var anon3 = new { Foo = 5, Bar = 10 };
var anon4 = new { Bar = 2, Foo = 1 };
// anon.Equals(anon2) == true
// anon.Equals(anon3) == false
// anon.Equals(anon4) == false (anon and anon4 have different types, see below)

當且僅當它們的屬性具有相同的名稱和型別並且以相同的順序出現時，才認為兩個匿名型別相同。

var anon = new { Foo = 1, Bar = 2 };
var anon2 = new { Foo = 7, Bar = 1 };
var anon3 = new { Bar = 1, Foo = 3 };
var anon4 = new { Fa = 1, Bar = 2 };
// anon and anon2 have the same type
// anon and anon3 have diferent types (Bar and Foo appear in different orders)
// anon and anon4 have different types (property names are different)