VB中求二維數(shù)組各行各列元素之和

Private Sub Command1_Click()

目前創(chuàng)新互聯(lián)已為千余家的企業(yè)提供了網(wǎng)站建設(shè)、域名、虛擬空間、網(wǎng)站運(yùn)營、企業(yè)網(wǎng)站設(shè)計、宣城網(wǎng)站維護(hù)等服務(wù)，公司將堅持客戶導(dǎo)向、應(yīng)用為本的策略，正道將秉承"和諧、參與、激情"的文化，與客戶和合作伙伴齊心協(xié)力一起成長，共同發(fā)展。

Dim a(4, 4) As Double

Dim sum1 As Double

For i = 1 To 4

sum = 0

For j = 1 To 4

a(i, j) = Format(Rnd * 89 + 10, "0")

sum = sum + a(i, j)

Print a(i, j);

Next j

Print sum

Next i

For j = 1 To 4

sum = 0

For i = 1 To 4

sum = sum + a(i, j)

Next i

Print sum;

Next j

End Sub

連每個數(shù)都輸出了，你自己運(yùn)行一下看看。

vb net data grid view如何計算這一列的總和

用循環(huán)啊

Private?Sub?Button1_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button1.Click

Dim?count?As?Integer?=?Me.DataGridView1.Rows.Count

Dim?sum?As?Double?=?0

For?i?=?0?To?count?-?1

sum?+=?Val(Me.DataGridView1.Item("Amount",?i).Value)

Next

MsgBox("和是:"??sum)

End?Sub

在excel的VB中如何求一列數(shù)的和？

現(xiàn)在的表格都有求和功能，就是把鼠標(biāo)放在你想求和的數(shù)字上，連續(xù)數(shù)字按住鼠標(biāo)往下拉，拉到結(jié)束的地方，在表格的右下角就會出現(xiàn)你要求的和

VB.NET 中datagrid一列怎么求和

Dim textColumn As New DataGridViewTextBoxColumn() '定義一個新的textbox格式的列

textColumn.Name = "Column1" '定義該列的Name

textColumn.HeaderText = "Column1" '定義該列的標(biāo)題

DataGridView1.Columns.Add(textColumn)

For Each r As DataGridViewRow In DataGridView1.Rows '循環(huán)DataGridView的行

r.Cells(textColumn.Index).Value = r.Cells(0).Value + r.Cells(1).Value '將第一列和第二列單元格數(shù)據(jù)相加，并顯示在新添加的單元格上

Next

VB.net中的求和問題

Private Sub Command1_Click()

MsgBox CalcResult(2)

End Sub

Public Function CalcResult(X As Long) As Double

Dim dblMinLevel As Double

Dim dblItem As Double

Dim dblN As Double

Dim dblMember As Double, dblBase As Double

Dim i As Double

Dim dblResult As Double

dblMinLevel = 10 ^ (-6)

dblN = 0

Do

dblMember = X ^ dblN

dblBase = 1

i = dblN

Do While i 1

dblBase = dblBase * i

i = i - 1

Loop

dblItem = dblMember / dblBase

dblResult = dblResult + dblItem

dblN = dblN + 1

Loop While dblItem = dblMinLevel

CalcResult = dblResult

End Function