“Please enther a valid date of

“Please enther a valid date of c = Val(Mid(a,j, a=-2,求val(a)=?,val(a)=?说明原因. 在VB中 a=”zpg96daq”,则 Val (a) a=val(thisform.text1.value)在vfp中是什么意思 int val = ((a+b) + abs(a-b))/2; // val是 max 还是 min 这是什么东西. select a.* from test a where 1 > (select count(*) from test where name = a.name and val > a.val )sql语句,按name分组显示最大的val值的字段,不明白具体意思, vb中定义什么类型的数据,自动保留2位小数,a = Val(Trim(MSFlexGrid1.TextMatrix(1,3))) / Val(Trim(MSFlexGrid1.TextMatrix(10,3))) * 100b = Val(Trim(MSFlexGrid1.TextMatrix(2,3))) / Val(Trim(MSFlexGrid1.TextMatrix(10,3))) * 100c = Val(Trim(M vb题 下面程序的功能是什么?Private Sub Command1_Click() Dim s%,n% Dim a As String n = 0 a = InputBox(Please input a number:) For s = 1 To Len(a) If (func(Val(Mid(a,s,1)))) Thenn = n + 1NextPrint n End Sub Private Function func(x%) As Bool 程序阅读,程序功能是什么Private Sub Command1_Click()Dim s%,n%Dim a As Stringn=0a=InputBox(“Please input a number：”)For s=1To Len(a)If(func(Val(Mid(a,s,1)))) Then n=n+1NextPrint nEnd SubPrivate Function func(x%) As BooleanIf(x Mod 2=0) 设A=12345678,则Val(left(A,4)+mid(A,4,2))=? 在vb 中,设变量A的值为-2,则Val(A)的结果是什么, Private Sub Command1_Click() A = Val(Text1.Text):B = Val(Text2.Text) For M = A To B M = M + 1 NextPrivate Sub Command1_Click()A = Val(Text1.Text):B = Val(Text2.Text)For M = A To BM = M + 1Next MLabel1 = MEnd Sub当A为1,B为2时,运行出来为什么 VB中Val是什么 val(“a123AB‘’)等于多少? val是男名女名?怎么读? val怎么读 val开头 英语单词