类型转换函（相关vb.net教程)

常用:

val(expression)             转换为数值类型

CDate(expression)         转换为日期

CDbl(expression)          转换为小数

CInt(expression)          转换为整数

CLng(expression)           转换为长整数

字符串转换为日期时间
        Dim aDateString, aTimeString As String
        Dim aDate, aTime As Date
 
        aDateString = "2/12/2002"
        aTimeString = "4:35:47 PM"
       
aDate = CDate(aDateString)

        aTime = CDate(aTimeString)

其他类型转换为字符串
        Dim aDouble As Double
        Dim aString As String
        aDouble = 437.324

        aString = CStr(aDouble)