计算机VB设计题汇编含答案.ppt

VB设计题汇编,VB设计题分类,时钟控件应用 列表框&组合框控件应用 图形框&图像框&绘图&图片加载 滚动条的应用 文本框&按钮&标签控件 单选框&复选框&框架控件应用 菜单设计,时钟控件应用,Private Sub Form_Load() Timer1.Enabled = False End Sub Private Sub Command1_Click() Timer1.Enabled = True End Sub,Private Sub Command2_Click() Label1.Caption = “00:00:00“ Timer1.Enabled = False End Sub Private Sub Timer1_Timer() Label1.Caption = Format(Time, “hh:mm:ss“) End Sub,列表框&组合框控件应用,添加两个list控件和一个Caption属性为剪切的按钮. Private Sub Command1_Click() List2.AddItem List1.Text List1.RemoveItem List1.ListIndex End Sub Private Sub Form_Load() List1.AddItem “AAA“ List1.AddItem “BBB“ List1.AddItem “CCC“ List1.AddItem “DDD“ List1.AddItem “EEE“ End Sub,图形框&图像框&绘图&图片加载,在工具栏的“添加窗体”添加form2窗体. 在工程资源管理器窗口中的“工程属性”对话框指定form1为启动窗体. 在Form1中添加一个命令按钮. Private Sub Command1_Click() Unload Me Form2.Show form2.picture=Loadpicture(“K:Fjexam95ravmon.jpg”) End Sub,控件属性设置如题 Private Sub Form_Load() Image1.Picture =LoadPicture(“k:fjexam95Tree.jpg“) Image2.Picture = LoadPicture(“k:fjexam95dog.jpg“) Image3.Visible = False End Sub Private Sub Command1_Click() Image3.Picture = Image1.Picture Image1.Picture = Image2.Picture Image2.Picture = Image3.Picture Image3.Visible = False End Sub,相关代码如下： Private Sub C1_Click() Form1.Picture = LoadPicture(“k:fjexam95jztx.bmp“) End Sub Private Sub C2_Click() Form1.Picture = LoadPicture(“) End Sub,滚动条的应用,添加Label2，Label3，Label4，Label5.其Caption分为”调出颜色”,”红(R)”,”绿(G)”,”蓝(B)”的标签控件，Label1的 Caption 为空，和 添加三个水平滚动条(名称为hs1,hs2,hs3)，且min,max属性值均为0，255。 Private Sub HS1_Change() Label1.BackColor=RGB(HS1.Value,HS2.Value, HS3.Value) End Sub Private Sub HS2_Change() Label1.BackColor=RGB(HS1.Value,HS2.Value, HS3.Value) End Sub Private Sub HS3_Change() Label1.BackColor=RGB(HS1.Value,HS2.Value, HS3.Value) End Sub,文本框&按钮&标签控件,相关代码如下： Private Sub Command1_Click() Text1.Visible = False End Sub Private Sub Command2_Click() Text1.Visible = True Text1.Text = “VB程序设计“ End Sub,Private Sub Command1_Click() If Text1.Text = “student“ Then Label2.Caption = “欢迎使用本系统“ Else Label2.Caption = “口令错，请重新输入“ Text1.SelStart = 0 Text1.SelLength = Len(Text1.Text) Text1.SetFocus End If End Sub Text1属性：PassWordChar-*,添加标签caption属性为“请您输入您的昵称”的label控件；添加一个文本框和一个caption属性为“下一步”的命令按钮，其enabled属性为false. Private Sub Text1_Change() Command1.Enabled = True Form1.Caption = Text1.Text End Sub,单选框&复选框&框架控件应用,Private Sub c1_Click() If ch1 And ch2 Then Text1.Text = “报名参加篮球和排球比赛“ ElseIf ch1 Then Text1.Text = “报名参加篮球比赛“ ElseIf ch2 Then Text1.Text = “报名参加排球比赛“ Else Text1.Text = “ End If End Sub,菜单设计,添加一个文本框,其text属性为“欢迎使用vb” 添加菜单：选择工具菜单下的菜单编辑器，添加如图菜单, 编辑器中的可见属性不选(即菜单不可见). Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) If Button = 2 Then PopupMenu kj （即鼠标右键时弹出快捷菜单） End