单选题：h0247. 定义类Countter并实例化如下：

定义类Countter并实例化如下：


Class Countter(name:String){
val a = 1
var b = “counter”
}


val counter = new Countter(“computer”)，下列操作正确的是？





A.counter.name = “cpu”
B.counter.a = 2
C.counter.b = “conter”
D.counter.a = counter.b


答案：C