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[英]Correct syntax for SQL Update function in Excel VBA
[英]VBA excel function syntax
我需要编写一个excel宏,以读取三角形边的长度并检查此三角形是否存在,如果存在,宏也应定义三角形的类型,然后输出结果。 这是我的代码-
Public Function tri(a, b, c)
Public answer As String
If a + b <= c Or b + c <= a Or c + a <= b Then
answer = "triangle doesn't exist"
ElseIf a = b = c Then
answer = "eq triangle"
ElseIf a = b Or c = a Or b = c Then
answer = "isosceles triangle"
ElseIf (a + b) ^ 2 = c ^ 2 Or (a + c) ^ 2 = b ^ 2 Or (c + b) ^ 2 = a ^ 2 Then
answer = "right triangle"
Else
answer = "regular triangle"
End If
ActiveCell = answer
End Function
我将不胜感激。
我们必须:
Dim
Public Function tri(a, b, c) As String
Dim answer As String
If a + b <= c Or b + c <= a Or c + a <= b Then
answer = "triangle doesn't exist"
ElseIf a = b = c Then
answer = "eq triangle"
ElseIf a = b Or c = a Or b = c Then
answer = "isosceles triangle"
ElseIf (a + b) ^ 2 = c ^ 2 Or (a + c) ^ 2 = b ^ 2 Or (c + b) ^ 2 = a ^ 2 Then
answer = "right triangle"
Else
answer = "regular triangle"
End If
tri = answer
End Function
我认为Select Case
在这种情况下是更合适的语法
此外,您可以摆脱支持变量
Public Function tri(a, b, c) As String
Select Case True
Case a + b <= c Or b + c <= a Or c + a <= b
tri = "triangle doesn't exist"
Case a = b = c
tri = "eq triangle"
Case a = b Or c = a Or b = c
tri = "isosceles triangle"
Case (a + b) ^ 2 = c ^ 2 Or (a + c) ^ 2 = b ^ 2 Or (c + b) ^ 2 = a ^ 2
tri = "right triangle"
Case Else
tri = "regular triangle"
End Select
End Function
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