VB矩阵相乘实验报告.doc

VB.NET应用开发 实 验 报 告 四 题 目： 矩阵相乘 学生姓名： YQY 完成时间： 2012年 11月 07日  问题描述 编程实现两矩阵相乘，要求： 1.界面输入矩阵A和B的行列数； 2.矩阵元素值由随机函数生成，随机函数取值范围由界面录入； 3.点击“计算”按钮，程序首先判断两矩阵是否满足矩阵相乘条件，若满足，则将矩阵A、B和结果矩阵C显示在下方label中（注意格式对齐）；若不满足，需给出提示信息，并清空相关textbox。 2. 关键代码 Imports System.Math Public Class Form1 Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click TextBox1.Text = TextBox2.Text = TextBox3.Text = TextBox4.Text = TextBox5.Text = TextBox6.Text = TextBox7.Text = End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim i, j, m, n, x, y, k1, k2, k3 As Integer Dim sc1(10, 10), sc2(10, 10), sc3(10, 10) As Integer Randomize() i = TextBox1.Text j = TextBox2.Text m = TextBox3.Text n = TextBox4.Text x = TextBox5.Text y = TextBox6.Text If j m Then MsgBox(两个矩阵无法进行相乘，请重新输入, , 警告) Else For k1 = 1 To i For k2 = 1 To j sc1(k1, k2) = Int(Rnd() * (Abs(y - x) + 1) + Min(x, y)) TextBox7.Text = sc1(k1, k2) Space(4) Next TextBox7.Text = vbCrLf Next For k1 = 1 To m For k2 = 1 To n sc2(k1, k2) = Int(Rnd() * (Abs(y - x) + 1) + Min(x, y)) TextBox7.Text = sc2(k1, k2) Space(4) Next TextBox7.Text = vbCrLf Next For k1 = 1 To i For k2 = 1 To n For k3 = 1 To j sc3(k1, k2) += sc1(k1, k3) * sc2(k3, k2) Next k3 TextBox7.Text = sc3(k1, k2) Space(4) Next k2 TextBox7.Text = vbCrLf Next k1 End If End Sub End Class 结果显示如下： 问题总结及心得体会 首先判断两个矩阵能否相乘，当第一个矩阵的列数不等于第二个矩阵的行数时，两