比较Cint() , int() , fix() ,round()的区别 |
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Cint 小数部分超过0.5的部分都进位,不分正负 例如:Cint(2.51)=3 Cint(-2.51)=-3
小于等于0.5的部分都舍去,不分正负 例如:Cint(2.49)=2 Cint(-2.49)=-2 Cint(2.5)=2 Cint(-2.5)=-2
Int 取到的是小于这个数的最大整数 例如: Int(2.49)=2 Int(2.50)=2 Int(2.51)=2 Int(-2.49)=-3 Int(-2.50)=-3 Int(-2.51)=-3
Round 确定好保留的位数后,后面的直接四舍五入 例如: Round(2.459,2)=2.46 Round(2.454,2)=2.45 Round(-2.459)=-2.46 Round(-2.454,2)=-2.45
Fix 省略小数位,即直接截走小数位 例如 Fix(2.51)=2 Fix(2.49)=2 Fix(-2.49)=-2 Fix(-2.51)=-2
在实际操作中验证: Private Sub Command1_Click() List1.AddItem "Cint(2.49)=" & CStr(CInt(2.49)) List1.AddItem "Cint(-2.49)=" & CStr(CInt(-2.49)) List1.AddItem "Cint(2.50)=" & CStr(CInt(2.5)) List1.AddItem "Cint(-2.50)=" & CStr(CInt(-2.5)) List1.AddItem "Cint(2.12)=" & CStr(CInt(2.12)) List1.AddItem "Cint(-2.12)=" & CStr(CInt(-2.12)) List1.AddItem "Cint(2.51)=" & CStr(CInt(2.51)) List1.AddItem "Cint(-2.51)=" & CStr(CInt(-2.51))
List1.AddItem " "
List1.AddItem "Int(2.49)=" & CStr(Int(2.49)) List1.AddItem "Int(-2.49)=" & CStr(Int(-2.49)) List1.AddItem "Int(2.50)=" & CStr(Int(2.5)) List1.AddItem "Int(-2.50)=" & CStr(Int(-2.5)) List1.AddItem "Int(2.12)=" & CStr(Int(2.12)) List1.AddItem "Int(-2.12)=" & CStr(Int(-2.12)) List1.AddItem "Int(2.51)=" & CStr(Int(2.51)) List1.AddItem "Int(-2.51)=" & CStr(Int(-2.51)) List1.AddItem "Int(-0.51)=" & CStr(Int(-0.51)) List1.AddItem "Int(0.51)=" & CStr(Int(0.51))
List1.AddItem " "
List1.AddItem "Round(2.459,2)=" & CStr(Round(2.459, 2)) List1.AddItem "Round(-2.459,2)=" & CStr(Round(-2.459, 2)) List1.AddItem "Round(2.454,2)=" & CStr(Round(2.454, 2)) List1.AddItem "Round(-2.454,2)=" & CStr(Round(-2.454, 2))
List1.AddItem " "
List1.AddItem "fix(2.45)=" & CStr(Fix(2.45)) List1.AddItem "fix(2.51)=" & CStr(Fix(2.51)) List1.AddItem "fix(-2.49)=" & CStr(Fix(-2.49)) List1.AddItem "fix(-2.51)=" & CStr(Fix(-2.51)) End Sub |
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