首页/ 题库 / [单选题]以下程序段运行的结果是 ______。 的答案

以下程序段运行的结果是 ______。 Dim a(-1 To 5)As Boolean Dim flag As Boolean flag=False Dim i As Integer Dim j As Integer Do Until flag=True For i=-1 To 5 j=j+1 If a(i)=False Then a(i)=True Exit For End If If i=5 Then flag=True End If Next Loop Print j

单选题
2022-01-06 02:44
A、20
B、7
C、35
D、8
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正确答案
C
试题解析
解析：该程序段的作用是给数组a的每个数组元素赋值True，具体实现的方式为： 每次从数组a的第一个元素开始判断，该元素是否为False，如果是，则令此元素为True，然后跳出循环，重新从数组a的第一个元素开始判断；如果当前元素不为False，则判断下一个元素。因此语句j=j+1将执行 1+2+3+4+5+6+7=28次，即j=28。然后再遍历一遍数组a的所有元素，最后结束程序段。所以j最终的值是： j=28+7=35。
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