编织（）在Windows上调用以下文档 dia.Rnw 时，只会打印块（块）中的变音字符 . 使用 \Sexpr{} 内联打印它们按预期工作 .
\documentclass[a4paper]{article}
\usepackage[utf8]{inputenc}
\begin{document}
<<c1>>=
sCaron <- "\u0161"
@
Priting the diacritic character \Sexpr{sCaron} inline with \verb|Sexpr{sCaron}| results in
the correct UTF-8 character in the .tex document.
Using a chunk/block (output is wrapped in a verbatim environment) does not print the right
character.
<<c2>>=
sCaron
@
\end{document}
该文件保存为UTF-8，调用knitr（版本1.11）
knit("dia.Rnw", encoding = "UTF-8")
我的 sessionInfo() ：
R version 3.2.2 (2015-08-14)
Platform: x86_64-w64-mingw32 / x64（64位）
Running under: Windows 7 x64（内部版本7601）Service Pack 1
locale: LC_COLLATE = German_Austria.1252，LC_CTYPE = German_Austria.1252，LC_MONETARY = German_Austria.1252，LC_NUMERIC = C，LC_TIME = German_Austria.1252
attached base packages: stats，graphics，grDevices，utils，datasets，methods，base
other attached packages: knitr_1.11，devtools_1.9.1.9000
loaded via a namespace (and not attached): magrittr_1.5，formatR_1.2.1，tools_3.2.2，memoise_0.2.1，stringi_0.5-5，highr_0.5.1，stringr_1.0.0，digest_0.6.8，evaluation_0.8，fortunes_1.5-2