执行下面的程序后,结果是正确是___static void Main(string[] args) { string s = "Test"; string t = string.Copy(s); Console.Write("{0},",s == t); Console.Write("{0},", (object)s == t); Console.Write("{0},", s == (object)t); Console.WriteLine("{0},", (object)s == (object)t); }
A. True,False,False,False
B. False,False,True,False
C. False,False,False,True
D. True,True,False,False
下面选项中是在 C#中定义数组的是___
A. int a[5]={1,2,3,4,5};
B. double [2][3] aa={{1,2,3},{5,2,1}};
C. string[] a=new string[5];
D. int [][]aa=new int [2][3]{{1,2,3},{5,2,1}};