diff --git a/cls/global.cls b/cls/global.cls
index 7424864..b11f1f1 100644
--- a/cls/global.cls
+++ b/cls/global.cls
@@ -10,4 +10,10 @@
 \linespread{1.5}
 
 %% 表格
-\captionsetup[table]{belowskip=0pt,aboveskip=5pt}
\ No newline at end of file
+\captionsetup[table]{belowskip=0pt,aboveskip=5pt}
+
+%粗线，在表格中可以画出更粗的线条
+\newcommand{\thickhline}{%
+    \noalign {\ifnum 0=`}\fi \hrule height 1pt
+    \futurelet \reserved@a \@xhline
+}
\ No newline at end of file