我在 x64 Windows 10 上使用 Emacs 25.1，我想显示以 BIG5 和 GBK 编码以及 UTF 编码的中文纯文本文件，但是我发现 BIG5 编码文件中的字符显示为乱码，但 GBK 和 UTF-8 可以。我当前的字体/编码设置为.emacs：
(set-language-environment 'utf-8)
(set-buffer-file-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
(prefer-coding-system 'utf-8)
;; font
(setq font-encoding-alist
(append '(("gb2312.1980" . chinese-gbk)
("iso8859-1$" . iso-8859-1)
("iso8859-2$" . iso-8859-2)
("iso8859-3$" . iso-8859-3)
("iso8859-4$" . iso-8859-4)
("iso8859-5$" . iso-8859-5)
("iso8859-6$" . iso-8859-6)
("iso8859-7$" . iso-8859-7)
("iso8859-8$" . iso-8859-8)
("iso8859-9$" . iso-8859-9)
("iso8859-10$" . iso-8859-10)
("iso8859-11$" . iso-8859-11)
("iso8859-13$" . iso-8859-13)
("iso8859-14$" . iso-8859-14)
("iso8859-15$" . iso-8859-15)
("iso8859-16$" . iso-8859-16)
("ascii-0$" . ascii)
("gb2312.1980" . chinese-gb2312)
("gbk" . chinese-gbk)
("gb18030" unicode)
("jisx0208.1978" . japanese-jisx0208-1978)
("jisx0208" . japanese-jisx0208)
("jisx0201" . jisx0201)
("jisx0212" . japanese-jisx0212)
("ksx1001" . korean-ksc5601)
("ksc5601.1987" . korean-ksc5601)
("cns11643.1992.*1" . chinese-cns11643-1)
("cns11643.1992.*2" . chinese-cns11643-2)
("cns11643.1992.*3" . chinese-cns11643-3)
("cns11643.1992.*4" . chinese-cns11643-4)
("cns11643.1992.*5" . chinese-cns11643-5)
("cns11643.1992.*6" . chinese-cns11643-6)
("cns11643.1992.*7" . chinese-cns11643-7)
("cns11643.92p1-0" . chinese-cns11643-1)
("cns11643.92p2-0" . chinese-cns11643-2)
("cns11643.92p3-0" . chinese-cns11643-3)
("cns11643.92p4-0" . chinese-cns11643-4)
("cns11643.92p5-0" . chinese-cns11643-5)
("cns11643.92p6-0" . chinese-cns11643-6)
("cns11643.92p7-0" . chinese-cns11643-7)
("big5" . big5)
("viscii" . viscii)
("tis620" . tis620-2533)
("microsoft-cp1251" . windows-1251)
("koi8-r" . koi8-r)
("jisx0213.2000-1" . japanese-jisx0213-1)
("jisx0213.2000-2" . japanese-jisx0213-2)
("jisx0213.2004-1" . japanese-jisx0213\.2004-1)
("iso10646-1$" unicode-bmp)
("iso10646.indian-1" unicode-bmp)
("unicode-bmp" unicode-bmp)
("abobe-symbol" . symbol)
("sisheng_cwnn" . chinese-sisheng)
("mulearabic-0" . arabic-digit)
("mulearabic-1" . arabic-1-column)
("mulearabic-2" . arabic-2-column)
("muleipa" . ipa)
("ethiopic-unicode" unicode-bmp . ethiopic)
("is13194-devanagari" . indian-is13194)
("Devanagari-CDAC" . devanagari-cdac)
("Sanskrit-CDAC" . sanskrit-cdac)
("Bengali-CDAC" . bengali-cdac)
("Assamese-CDAC" . assamese-cdac)
("Punjabi-CDAC" . punjabi-cdac)
("Gujarati-CDAC" . gujarati-cdac)
("Oriya-CDAC" . oriya-cdac)
("Tamil-CDAC" . tamil-cdac)
("Telugu-CDAC" . telugu-cdac)
("Kannada-CDAC" . kannada-cdac)
("Malayalam-CDAC" . malayalam-cdac)
("Devanagari-Akruti" . devanagari-akruti)
("Bengali-Akruti" . bengali-akruti)
("Punjabi-Akruti" . punjabi-akruti)
("Gujarati-Akruti" . gujarati-akruti)
("Oriya-Akruti" . oriya-akruti)
("Tamil-Akruti" . tamil-akruti)
("Telugu-Akruti" . telugu-akruti)
("Kannada-Akruti" . kannada-akruti)
("Malayalam-Akruti" . malayalam-akruti)
("muleindian-2" . indian-2-column)
("muleindian-1" . indian-1-column)
("mulelao-1" . mule-lao)
("muletibetan-2" . tibetan)
("muletibetan-0" . tibetan)
("muletibetan-1" . tibetan-1-column))
font-encoding-alist)
)
(create-fontset-from-fontset-spec
(concat
"-*-consolas-medium-r-normal-*-12-*-*-*-*-*-fontset-consolas,"
"chinese-gb2312:-*-Microsoft Jhenghei-medium-r-*-*-12-*-*-*-c-*-gb2312*-*,"
"mule-unicode-0100-24ff:-*-Microsoft Jhenghei-medium-r-*-*-12-*-*-*-c-*-iso10646*-*,"
"chinese-big5-1:-*-Microsoft Jhenghei-medium-r-*-*-14-*-*-*-*-*-big5-0,"
"chinese-big5-2:-*-Microsoft Jhenghei-medium-r-*-*-14-*-*-*-*-*-big5-0,"
"korean-ksc5601:-*-Malgun Gothic-medium-r-*-*-12-*-*-*-*-*-ksc5601*-*,"
"chinese-cns11643-5:-*-Microsoft Jhenghei-medium-r-*-*-12-*-*-*-c-*-gbk*-*,"
"chinese-cns11643-6:-*-Microsoft Jhenghei-medium-r-*-*-12-*-*-*-c-*-gbk*-*,"
"chinese-cns11643-7:-*-Microsoft Jhenghei-medium-r-*-*-12-*-*-*-c-*-gbk*-*,"
"sjis:-*-Meiryo-medium-r-normal--12-*-jisx0208*-*"
))
;; Chinese Font
; cjk-misc gb18030 chinese-gbk chinese-gb2312
(dolist (charset '(han cjk-misc chinese-gbk))
(set-fontset-font t ;; (frame-parameter nil 'font)
charset
(if (string-equal system-type "windows-nt")
(font-spec :family "Microsoft Jhenghei")
(font-spec :family "Noto Sans CJK Regular"))))
(set-default-font "fontset-consolas")
(set-fontset-font "fontset-consolas"
'gb18030 '("Microsoft Jhenghei" . "unicode-bmp")) ;; Chinese
那么如何在 Emacs 25 中显示所有不同的中文编码？提前致谢。