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有下列两个过程:

Sub S1(ByVal x As Integer,ByVal y As Integer)

Dim t As Integer

t=x

x=y

y=t

End Sub

Sub S2(x As Integer,y As Integer)

Dim t As Integer

t=x

x=y

y=t

End Sub

则下列叙述中正确的是( )。

A.用过程S1可以实现交换两个变量的值的操作,S2不能实现

B.用过程S2可以实现交换两个变量的值的操作,S1不能实现

C.用过程S1和S2都可以实现交换两个变量的值的操作

D.用过程S1和S2都不能实现交换两个变量的值的操作


参考答案

更多 “ 有下列两个过程:Sub S1(ByVal x As Integer,ByVal y As Integer)Dim t As Integert=xx=yy=tEnd SubSub S2(x As Integer,y As Integer)Dim t As Integert=xx=yy=tEnd Sub则下列叙述中正确的是( )。A.用过程S1可以实现交换两个变量的值的操作,S2不能实现B.用过程S2可以实现交换两个变量的值的操作,S1不能实现C.用过程S1和S2都可以实现交换两个变量的值的操作D.用过程S1和S2都不能实现交换两个变量的值的操作 ” 相关考题
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