static void TestPropertyInit()
{
PropertyInit a = new PropertyInit();
a.A = 1;
a.B = 2;
a.C = 3;
PropertyInit b = new PropertyInit(a)
{
C = 100
};
Console.WriteLine($"b.A={b.A},b.B={b.B},b.C={b.C}");
}
public PropertyInit(PropertyInit Tp)
{
this.A = Tp.A;
this.B = Tp.B;
}