fix: 将coverinfo恢复为缺省值

coverinfo.sty

-\tl_const:Nn \TitleOne {一种使用南京大学LaTeX模版}% 第一行标题
-\tl_const:Nn \TitleTwo {编写本科生毕业论文的经验性方法}% 第二行标题
+\tl_const:Nn \TitleOne {曲率引擎的研究}% 第一行标题
+\tl_const:Nn \TitleTwo {}% 第二行标题
 \tl_const:Nn \TitleThree {}% 第三行标题
-\tl_const:Nn \Title_EN {An~Empirical~Way~of~Composing~Undergraduate~Thesis~with~NJU~LaTeX~Template}
-\tl_const:Nn \Grade {2018}
-\tl_const:Nn \StudentID {181114514}
+\tl_const:Nn \Title_EN {Curvature~engine~research}
+\tl_const:Nn \Grade {2017}
+\tl_const:Nn \StudentID {17184xxx}
 \tl_const:Nn \StudentName {张三}
-\tl_const:Nn \StudentName_EN {ZhangSan}
-\tl_const:Nn \Department {拉太赫科学与技术学院}
-\tl_const:Nn \Department_EN {School of LaTeX}
-\tl_const:Nn \Major {拉太赫语言学}
-\tl_const:Nn \Major_EN {LaTeX Linguistics}
+\tl_const:Nn \StudentName_EN {Zhang~San}
+\tl_const:Nn \Department {未来学院}
+\tl_const:Nn \Department_EN {School~of~Future}
+\tl_const:Nn \Major {未来学}
+\tl_const:Nn \Major_EN {Future}
 \tl_const:Nn \Mentor {李四}
-\tl_const:Nn \Mentor_EN {LiSi}
+\tl_const:Nn \Mentor_EN {Li~Si}
 \tl_const:Nn \MentorTitle {教授}
 \tl_const:Nn \MentorTitle_EN {Professor}
-\tl_const:Nn \SubmitDate {2021年8月10日}
+\tl_const:Nn \SubmitDate {2077年12月31日}
 \tl_const:Nn \Degree {本科}% 学位
 \tl_const:Nn \Type {thesis}% thesis：毕业论文，design:毕业设计
\ No newline at end of file

njuthesis.tex

@@ -9,10 +9,8 @@
 \begin{document}
 
 \maketitle
-
-
-
 \tableofcontents
+
 % 开始正文部分
 \mainmatter