13518219792
Private Sub Form_Click()
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Dim a(3) As Integer
Dim m As Boolean
m = True
For i = 0 To 3
a(i) = 1
Next i
For i = 0 To UBound(a)
If a(i) 1 Then
m = False
Exit For
End If
Next i
If m = True Then
Print "全部符合"
Else
Print "不全部符合"
End If
End Sub
Dim str As String = "", temp, n As Integer
Dim str1 As String = "12,45,2,9,41,31,66,83,2,1,-9,-91,-21"
Dim a() As String = Split(str1, ",")
For i = 1 To UBound(a) Step 1
a(i) = Val(a(i))
Next
temp = 0
n = 0
For i = 1 To UBound(a)
If a(i) temp Then
temp = a(i)
End If
If a(i) 0 Then
n = n + 1
End If
Next
str = str "正数的个数为 " n
str = str "最大元素的下标为 "
For i = 1 To UBound(a)
If a(i) = temp Then
str = str i " "
End If
Next
TextBox6.Text = str
Dim str As String = "", temp, n As Integer
Dim str1 As String = "12,45,2,9,41,31,66,83,2,1,-9,-91,-21"
Dim a() As String = Split(str1, ",")
For i = 1 To UBound(a) Step 1
a(i) = Val(a(i))
Next
temp = 0
n = 0
For i = 1 To UBound(a)
If a(i) temp Then
temp = a(i)
End If
If a(i) 0 Then
n = n + 1
End If
Next
str = str "正数的个数为 " n
str = str "最大元素的下标为 "
For i = 1 To UBound(a)
If a(i) = temp Then
str = str i " "
End If
Next
TextBox6.Text = str
每行的数字个数不同,你说的这是不规则数组,解决方案如下:
Dim b As String = ""
Dim a As Integer()() = New Integer(9)() {}
a(0) = New Integer() {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
a(1) = New Integer() {0, 3, 4, 5}
a(2) = New Integer() {0, 4, 5, 6, 7}
a(3) = New Integer() {0, 6, 5, 8, 9, 1}
a(4) = New Integer() {0, 2, 5, 1, 7}
a(5) = New Integer() {0, 4, 2, 6, 7, 3}
a(6) = New Integer() {0, 4, 5, 3, 2}
a(7) = New Integer() {0, 4, 1, 6, 2, 8, 5, 3}
a(8) = New Integer() {0, 4, 9, 6, 3, 5, 7}
a(9) = New Integer() {0, 1, 5, 9, 7, 6, 2, 4, 3, 8}
For i As Integer = 0 To a.GetUpperBound(0)
b = "第" i + 1 "行有" a(i).GetUpperBound(0) + 1 "个数" vbCrLf
Next
MessageBox.Show(b)
vb.net已经去掉了控件数组这个类，不过有个代替该方式的一个属性：Tag，你可以把这些关联的Tag属性设置为同一标记，如：a。然后遍历所有的checkbox并且tag为a的则选定：Protected Sub chkAll_Click() For Each ctl As Control In Me.Controls ''如果checkbox在一个容器里，比如groupbox，那可以用groupbox.controls
If ctl.GetType().Name.ToLower() = "checkbox" Then
CType(ctl, CheckBox).Checked = CheckBox3.Checked
End If
NextEnd Sub
