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下列程序执行后,变量a的值为()。Dim a,b,c,d as singlea=100b=20c=1000if b>a Then d=a:a=b:b=dE
下列程序执行后,变量a的值为()。 Dim a,b,c,d as single a=100 b=20 c=1000 if b>a Then d=a:a=b:b=d End if if c>a Then d=a:a=c:c=d End if if c>b Then d=b:b=c:c=d End if
A.0
B.1000
C.20
D.100