(2)
请在划线处填入合适的代码。
Dim a(1 To 30) As String
Private Sub Form_Load( )
‘读取本月每日气温数据,存储于数组a中并在列表框List1中显示,过程略。
EndSub
PrivateSubCommand1_Click()
Dim temp(1
To 60) As Integer
Dim length
As Integer, t As Integer, j As Integer
Dim ave As Single
Dim f(30) As Integer
Dim flag As Boolean
For i=1 To 30
length=Len(a(i))
j=1: t=1
Do While j<=length
If Not(Mid(a(i), j, 1)<="9"
And Mid(a(i), j, 1)>="0") Then
temp(2*i-1)=Val(Mid(a(i),
t, j-t))
End If
j=j+1
Loop
temp(2*i)=Val(Mid (a(i), t, j-t))
Next i
f(0)=0: low=30: flag=False
For i=1 To 30
ave=(temp(i*2-1)+temp(i*2))/2
If ave<low Then low=ave
If Not flag Then
If ave<=10 Then
Else
f(i)=0
End If
If f(i)=5 Then
Text1.Text="本月已入冬"
flag=True
End If
End If
Next i
If Then Text1.Text="本月尚未入冬"
Text1.Text=Text1.Text+""+"本月日均气温最低为:"+Str(low)
End Sub