VB中single ,Integer,Split,String等术语是什么意思?具体用途是什么?能给个既详细又全面的回答吗?如果可能的话请说的通俗一点,谢谢各位GGJJ了.因为小弟是自学VB,还望见谅

VB中Integer、Long、Single、Double、Currency、String意思不是 这个我教材上也有 通俗易懂的 VB中single Integer和Single的区别是什么啊VB初学问题 VB 中定义变量时,string,integer,long,single和double这些常用的数据类型具体在什么情况下定义?VB 中定义变量时,string,integer,long,single和double这些常用的数据类型分别具体在什么情况下定义?我指的是 VB中single与double的区别 VB中 Option ExplicitPrivate Sub Form_Click()Dim 5Fg Integer （1）Dim L * og As Long （2）Dim s - ig As Single (3)Dim dob_ As Double （4)Dim _Name AS String （5）Dim bln@ Frag As Boolean （6）Dim do As Data （7）End Sub电脑上的提示 vb求∏的近似值.直到最后一项绝对值小于0.0001为止.公式：∏/4≈1-1/3+1/5-1/7+.程序中问号怎么填dim s as integer,n as integerdim t as single,pi as singles=1:t=1:n=1:pi=?do whlie asb(t) >0.0001pi=pi+?n=n+2s=-st=s/nloopprint VB中single ,Integer,Split,String等术语是什么意思?具体用途是什么?能给个既详细又全面的回答吗?如果可能的话请说的通俗一点,谢谢各位GGJJ了.因为小弟是自学VB,还望见谅 求VB程序设计,五行五列矩阵中副对角线之和Sub Fun(X() As Integer,N As Integer,s As Integer)'End SubPrivate Sub Command1_Click()N = Val(InputBox(请输入矩阵的行数N,数据输入,5))ReDim X(N,N)Form1.ClsRandomizeFor i = 1 To NF 用vb 求π Private Sub Form_Click()Dim i As Long,pi As Double,k As Integer,m As Doublei = 1k = 1pi = 0m = 1While (m > 0.00001)m = 1 / (2 * i - 1)pi = pi + k * mi = i + 1k = -kWendPrint π ; 4 * piEnd SubPrivate Sub Form_Click()Dim pi,c,s As Single VB中 FORM unload语句含义,Private sub_Unload(Cancel As Integer)Unload_Subend sub Single's 请帮我解释这段VB代码的含义(很简单)Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single)If Button = 2 Then Form1.PopupMenu mnePop,4End Sub这段里面的mousedown是什么意思?还有PopupMenu后面为 vb程序改错 求解一元二次方程（ax^2+bx+c=0）的程序求解一元二次方程（ax^2+bx+c=0）的程序Private Sub Command1_Click()Dim a As Integer,b As Integer,c As Integer,d As IntegerDim x1 As Single,x2 As SingleInputBox (a=)InputBox C++中 integer Vb求N的阶层我自己做的,Private Sub Form_Click()Dim a As Single,b As Integer,c As Integer,d As Singlea = 1b = 1c = 0d = 0Do While Abs(b / a) > 0.000001d = d + b / ac = c + 1a = a * cb = -bLoopPrint dEnd Sub 编写程序VB,在一个文本框中输入一个简单的英文句子,找出这个英文句子中最长的单词Private Sub Command1_Click()Dim word() As String,s As StringDim k As Integer,maxw As String,n As Integers = Text1.TextDon = InStr(s, )If Single Stick's