Question

local html_path = "[[" .. GetPostProcessorLocation()
html_path = html_path .. ????  .. "New Please Register Me.html]]"

chr(47)
"\"
exactly what do you need me to type so as to continue?

Answer 1

字符47是正斜杠（/），而不是反斜杠（\）。反斜杠是字符92。我假设您的意思是反斜杠，因为正斜杠通常不会引起任何问题。

我也不确定您想使用方括号（[[..]]）实现什么，因为这实际上是在Lua中表示多行字符串的一种方式，无需其他处理。

以下是Lua 5.2 REPL的有用输出示例：

Lua 5.2.4  Copyright (C) 1994-2015 Lua.org, PUC-Rio
> function GetPostProcessorLocation() return "C:\\Programs"; end
>
> print("[[" .. GetPostProcessorLocation() .. string.char(92)  .. "New Please Register Me.html]]")
[[C:\Programs\New Please Register Me.html]]
> print(GetPostProcessorLocation() .. string.char(92)  .. [[New Please Register Me.html]])
C:\Programs\New Please Register Me.html
> print(GetPostProcessorLocation() .. [[\New Please Register Me.html]])
C:\Programs\New Please Register Me.html
> print(GetPostProcessorLocation() .. [[\\New Please Register Me.html]])
C:\Programs\\New Please Register Me.html
> -- Note the double-backslash in the output above!
> print(GetPostProcessorLocation() .. "\\New Please Register Me.html")
C:\Programs\New Please Register Me.html
> print(string.format("%s\\%s", GetPostProcessorLocation(), "New Please Register Me.html"))
C:\Programs\New Please Register Me.html

如何在字符串中添加chr（47）'\'？

1 个答案: