CDbl 函数

将任意数字表达式或字符串表达式转换为双精度类型。

语法:


CDbl (Expression As Variant) As Double

返回值:

Double

参数:

Expression: Any string or numeric expression that you want to convert. To convert a string expression, the number must be entered using a dot "." as the decimal point and a comma "," as the thousands separator (for instance 123,456.78), which may differ from your Collabora Office language settings.

错误代码:

5 无效的过程调用

示例:

Numeric expressions are displayed according to Collabora Office language settings:


Sub ExampleCountryConvert
    MsgBox CDbl(1234.5678) ' 1234.5678
    MsgBox CInt(1234.5678) ' 1235
    MsgBox CLng(1234+5678) ' 6912
    MsgBox CSng(1234.5678) ' 1234.567749023

    MsgBox CDbl(expression := 5678.1234) ' 5678.1234
    MsgBox CInt(expression := 5678.1234) ' 5678
    MsgBox CLng(expression := 5678+1234) ' 6912
    MsgBox CSng(expression := 5678.1234) ' 5678.123535156
End Sub