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6、对于下面的程序,其循环执行的次数为:______。 For i = 1 To 3 For j = 5 To 1 Step -1 Label1.Text = i + j Next j Next i

A.12

B.13

C.14

D.15


参考答案和解析
j=0,第 1 次循环:j=1,s=10。第 2 次循环:j=2,s=30。第 3 次循环:j=3,s=60。 第 4 次循环:j=4,s=100。while 条件不再满足。所以,其中循环语句的执行次数为 4。
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