Question

我似乎无法找到具体的内容。我知道为了在多行上分割一段代码，你只需添加＆＃34; _＆＃34; 到该行的末尾。

但是，我注意到我的一些代码只在我使用＆＃34;＆amp; _＆＃34; ，以下一行包含一组额外的语音标记，如果它在一行上就不包括在内，为什么会这样？

一行代码：

Msg1 = MsgBox("Removing an LPA will remove ALL of their details from the database, including their documents - You cannot undo this action. Do you wish to continue?", vbYesNo, "WARNING!")

分开的代码行有效：

Msg1 = MsgBox("Removing an LPA will remove ALL of their details from the database," & _
"including their documents - You cannot undo this action. Do you wish to" & _
" continue?", vbYesNo, "WARNING!")

分开的代码行不起作用：

Msg1 = MsgBox("Removing an LPA will remove ALL of their details from the database, _
including their documents - You cannot undo this action. Do you wish to _
continue?", vbYesNo, "WARNING!")

那么＆＃34;＆amp; _＆＃34; 和＆＃34; _＆＃34;吗

如果不关闭并打开一组新的语音标记，你能否在新行上继续使用字符串？

Answer 1

VBA（以及VB6，VBScript和早期版本的VB.NET）不支持多行字符串文字：

' Doesn't work
myString = "a
b c"

' Doesn't work either, because _ does not have a special meaning when
' inside double quotes.
myString = "a _
b c"

因此，您需要将字符串拆分为多个字符串。您可以使用&运算符将它们连接起来：

myString = "a " & "b c"       ' yields "a b c"

然后然后你可以在两个令牌之间的任何地方将你的字符串分开：

myString = "a " & _
           "b c"              ' my personal preference

' or

myString = "a " _
           & "b c"

' or

myString = "a " _
           & _
           "b c"

' or even

myString _
    = _
    "a " _
    & _
    "b c"

Answer 2

＆安培; =连接两个字符串，_ =行分隔符

与c＃或Java不同，VBA代码行不以制造商（;）结尾，而是VBA IDE将每一行用作一个代码行。这会强迫你通过＆amp;和每一行连接字符串。登录。

还要注意最大线路延续高于此数字25，您将收到错误（线路延续太多）

https://msdn.microsoft.com/en-us/library/office/gg264236.aspx

线分离与＃34;＆amp; _＆＃34;和＆＃34; _＆＃34;在Access中 - VB

2 个答案: