vb.net“预期表达”是什么意思
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what does vb.net mean by "expression expected"
提问by user1944225
i dont know what to put after the bracket of the list item class, so their is an error saying
我不知道在列表项类的括号后面放什么，所以他们是一个错误说
expression expected
表达预期
This is the code:
这是代码：
Dim NewEntry As New ListItem(CostOfGame & " " & Ps3Games & " " & GameID & " " & IsTheGameInStock & " " &)
Also, can you please explain to me what list item does in simple terms as i still dont understand it?
另外，您能否用简单的术语向我解释列表项的作用，因为我仍然不明白？
回答by Edwin
You have an extra '&' at the end of your expression. It should just be:
您的表达式末尾有一个额外的“&”。它应该只是：
Dim NewEntry As New ListItem(CostOfGame & " " & Ps3Games & " " & GameID & " " & IsTheGameInStock & " ")
As to what a ListItem is and what it does, see the documentation. I suspect, though that an answer that you want is a little broader and beyond the scope of this site.
关于 ListItem 是什么以及它的作用，请参阅文档。我怀疑，尽管您想要的答案范围更广，超出了本网站的范围。
回答by chue x
You have an extra ampersand in there (the last one):
你在那里有一个额外的＆符号（最后一个）：
... IsTheGameInStock & " " &)
回答by chue x
It means you are using syntax in an incomplete fashion. For math, you are forgetting to use an equal sign "=" on the line throwing the exception. You are forgetting to say for example
这意味着您以不完整的方式使用语法。对于数学，您忘记在抛出异常的行上使用等号“=”。例如你忘记说
Dim x As Single
x = Math.Sqrt(16)
but you are doing something like
但你正在做类似的事情
Math.Sqrt(16)
or you do are something like
或者你是这样的
InStr(string,"hello")>0
instead of
代替
If InStr(string,"hello")>0 Then
.....
End IF
