\usepackage[BoldFont,SlantFont,CJKnumber]{xeCJK}
\usepackage{CJKfntef}

% Windows 预装字体设置
\setCJKmainfont[BoldFont={SimHei}, ItalicFont={KaiTi_GB2312}]{SimSun}
\setCJKsansfont{Microsoft YaHei}
\setCJKmonofont{FangSong_GB2312}

\setCJKfamilyfont{rm}[BoldFont={SimHei}, ItalicFont={KaiTi_GB2312}]{SimSun} % 同 main
\setCJKfamilyfont{sf}{Microsoft YaHei} % 同 sans
\setCJKfamilyfont{tt}{FangSong_GB2312} % 同 mono

\setCJKfamilyfont{song}{SimSun}
\setCJKfamilyfont{kai}{KaiTi_GB2312}
\setCJKfamilyfont{hei}{SimHei}
\setCJKfamilyfont{fs}{FangSong_GB2312}

\setCJKfamilyfont{you}{YouYuan}
\setCJKfamilyfont{li}{LiSu}