Abs 
ֵľֵ

Abs(number)
number Чֵʽ number  Null򷵻 Nullδʼ򷵻 0

˵
ֵľֵ޷ŵֵС磬Abs(-1)  Abs(1)  1

ʾ Abs ֵľֵ 

Dim MyNumber
MyNumber = Abs(50.3 )      ' 50.3
MyNumber = Abs(-50.3)      ' 50.3
