 Boolean ֵָʽֵǷΪ֡

IsNumeric(expression)
expression ʽ

˵
 expression ʶΪ֣IsNumeric  True False expression ڱʽIsNumeric  False

ʾ IsNumeric ǷΪֵ

Dim MyVar, MyCheck
MyVar = 53   'ֵ
MyCheck = IsNumeric(MyVar)   '  True
MyVar = "459.95"   ' ֵ
MyCheck = IsNumeric(MyVar)   ' True
MyVar = "45 Help"   ' ֵ
MyCheck = IsNumeric(MyVar)   '  False
Ҫ
汾 1
