如何得到" is entered as \ "

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> " is entered as \"
+
> " is entered as \ "
[1] " is entered as  "
> " is entered as \\ "
[1] " is entered as \\ "
> " is entered as \\"
[1] " is entered as \\"

如何得到这个字符串：

" is entered as \ "

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关键词：enter red 字符串 如何

1. > "\" is entered as \\\""
   
2. [1] "\" is entered as \\\""
   
3. > cat("\" is entered as \\\"", "\n", sep = "")
   
4. " is entered as \"

复制代码

> " is entered as \"
+
+
+
不行，不行