我不能使用 datediff vba

I can't use datediff vba

示例输入:

date1 = "2015-03-23 07:06:17.855000"
date2 = "2015-03-23 07:06:17.870000"

当我使用

ans = datediff("s", date1, date2)

它产生错误:type mismatch

我该如何解决这个问题?

尝试使用 CDate("string_date"):

将存储为字符串的日期转换为日期数据类型
Dim date1 As String, date2 As String, ans As Long

date1 = "2015-03-23 07:06:17.855000"
date2 = "2015-03-23 07:06:17.870000"
ans = datediff("s", CDate(Left(date1, Len(date1)-7)), CDate(Left(date2, Len(date2)-7)))
'returns 0, because both date and parts are the same!

DateDiff函数的最小单位是秒

看起来你还没有得到一个成功的答案,所以这是一种可能性。

Dim t() as string
Dim d1 as long
Dim d2 as long

date1 = "2015-03-23 07:06:17.855000"
date2 = "2015-03-23 07:06:17.870000"
t = split(date1, ".")   'use the "." to split off the miliseconds
d1 = clng(t(2))         'grab the milliseconds, convert it to long
t = split(date2, ".")   'use the "." to split off the miliseconds from the other date
d2 = clng(t(2))         'grab the milliseconds, convert it to long

msgbox "Difference in milliseconds: " & cstr(d2-d1)