1、End If中心问题Private Sub Form_Resize()Command1.Left = (Form1.ScaleWidth - Command1.Width) / 2Command1.Top = (Form1.ScaleHeight - Command1.Height) / 2Command1.Width = 0.2 * Form1.ScaleWidth曲线问题Private Sub Form_Paint()Scale (0, 0)-(3000, 3000)Form1.DrawWidth = 5Form1.ForeColor = RGB(255, 0, 0)Line (0, 15
2、00)-(3000, 1500)Line (1500, 0)-(1500, 3000)Circle (1500, 1500), 35For x = 0 To 3000y = 1500 - 200 * (Sin(x - 1500) * 3.1415926 / 180)PSet (x, y)Next x查找a = InStr(1, Text1, Text2)Text1.SelStart = a - 1Text1.SelLength = Len(Text2)Text1.SetFocusPrivate Sub Text1_Change()改变字体Private Sub Check1_Click()If
3、 Check1.Value = 1 Then Text1.Font.Name = 隶书宋体 End IfPrivate Sub Check2_Click()If Check2.Value = 1 Then Text1.Font.Bold = True Text1.Font.Bold = FalsePrivate Sub Check3_Click()If Check3.Value = 1 Then Text1.Font.Italic = TrueText1.Font.Italic = FalsePrivate Sub Check4_Click()If Check4.Value = 1 Then
4、Text1.ForeColor = vbRedText1.ForeColor = vbBlue同步Text2 = Text1.TextPrivate Sub Text2_Change()Text1 = Text2.TextSin函数Scale (0, 0)-(2000, 2000)PSet (1000, 1000)Line (1000, 0)-(950, 50)Line (1050, 50)-(1000, 0)Line (1950, 950)-(2000, 1000)Line (1950, 1050)-(2000, 1000)Line (0, 1000)-(2000, 1000)Line (1
5、000, 0)-(1000, 2000)Circle (1000, 1000), 50For x = 0 To 2000y = 1000 - 300 * (Sin(x - 1000) * 3.1415926 / 180)考试程序正确 Text1 = 错误Private Sub Form_Load()复制粘贴查找替换Private Sub Command3_Click()a = InStr(1, Text1, Text3)Text1.SelLength = Len(Text3)Private Sub Command4_Click()Text1.SelText = Text4图片路径Private
6、 Sub Dir1_Change()File1.Path = Dir1.PathPrivate Sub Drive1_Change()Dir1.Path = Drive1.DrivePrivate Sub File1_Click()Picture1.Picture = LoadPicture(File1.Path + File1.FileName)改变字体颜色 Text1.Font.Name = Text1.Font.Italic = False Text1.ForeColor = vbBlack兴趣选择Text1 = Text1 & Check1.Caption Check2.Caption
7、 Check3.Caption Check4.Caption1.求三角形的面积代码:Option ExplicitDim a!,b!,c!r,!,s!a = InputBox(a=, 请输入a的数值)b = InputBox(b=请输入b的数值c = InputBox(c=请输入c的数值If a + b c And a + c b And b + c a And a 0 And b 0 And c 0 Then r = 1 / 2 * (a + b + c) s = Sqr(r * (r - a) * (r - b) * (r - c)Label1.Caption = 三角形的面积为 & s Label2.Caption = 输入的数据不能构成三角形
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