[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feaitoJCUqllPuQ0Y6jib8RAGGrwqG2fxRWq479ulh3Q":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-06-13 22:07:16",63035073,[8,9,10,11],"如果"条件表达式"的值恒为0,则无限次执行循环体","如果"条件表达式"的值是0,则一次循环体也不执行","如果"条件表达式"的值不为0,则至少执行一次循环体","不论"条件表达式"的值是否为"真",至少要执行一次循环体",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},29,"ba4b42e37b37de108f7c8ce7a7e45027","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd3517193efca3f275d48e91da2f8243.png","Visual Basic程序设计","a4c18969896242b9b9e74a5a8e5496a0","循环结构测试","假定有以下循环结构: Do Until 条件表达式 循环体Loop则以下正确的描述是______",[21,32,41,44,53,60,65,70,75,80],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],63035071,[25,26,27,28],"若<条件>是一个为0的常数,则一次也不执行循环体","<条件>可以是关系表达式、逻辑表达式或常数","循环体中可以使用Exit Do语句","如果<条件>总是为True,则不停地执行循环体","设有以下循环结构:Do 循环体Loop While <条件>则以下叙述中错误的是________","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],63035072,[36,37,38,39],"Do … End Do","For Each … Next","Do … Loop","For … Next","以下Visual Basic不支持的循环结构是______",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],63035074,[48,49,50,51],"21 1","20 1","溢出","21 20","下面程序段的运行结果为________. Dim s As Integer, i As Integer i = 1: s = 1 Do i =i + s Loop Until s >20 Print i, s",{"answer":54,"createTime":55,"id":56,"options":57,"question":58,"source":30,"type":59},[],"2023-06-21 10:25:42",75695813,[],"下面程序段的运行结果为________. For i=1 To 5 n=1 For j=1 To i n=n*j Next j Print n; Next i",2,{"answer":61,"createTime":55,"id":62,"options":63,"question":64,"source":30,"type":59},[],75695814,[],"执行以下语句后,k的值为_____. Dim i As Single For i = 0.45 To 2 Step 0.5 k = k + 3 Next i Print i;k",{"answer":66,"createTime":55,"id":67,"options":68,"question":69,"source":30,"type":59},[],75695815,[],"有程序段如下: For i = 1 To 5 For j = 5 To i Step -1 Print i * j Next j Next i其中"Print i*j"语句执行的次数为_________",{"answer":71,"createTime":55,"id":72,"options":73,"question":74,"source":30,"type":59},[],75695816,[],"下面程序运行后,单击command1后屏幕显示是_________. Private Sub command1_click() For i = 1 To 5 If i > 3 Then Exit For Next i For j = 1 To 8 i =i + j Next j Print i, j End Sub",{"answer":76,"createTime":55,"id":77,"options":78,"question":79,"source":30,"type":59},[],75695817,[],"在窗体上画一个名称为Text1的文本框和一个名称为Command1的命令按钮,然后编写如下事件过程:Private Sub Command1_Click() Dim i As Integer, n As Integer For i = 0 To 50 i = i + 5 n = n + 1 If i > 30 Then Exit For Next Text1.Text = Str(n)End Sub程序运行后,单击命令按钮,在文本框中显示的值是______",{"answer":81,"createTime":55,"id":82,"options":83,"question":84,"source":30,"type":59},[],75695818,[],"设有如下程序段: x = 2 For i = 1 To 20 Step 3 x = x + i Next i 运行以上程序后,x的值是______"]