diff --git a/src/NetHack_3.7/src/sys.c b/src/NetHack_3.7/src/sys.c
index d1f9e0b..6dfbde2 100644
--- a/src/NetHack_3.7/src/sys.c
+++ b/src/NetHack_3.7/src/sys.c
@@ -18,7 +18,7 @@
 struct sysopt sysopt;
 
 void
-sys_early_init(void)
+sys_early_init(void)//初始化
 {
     sysopt.support = (char *) 0;
     sysopt.recover = (char *) 0;
@@ -90,7 +90,7 @@ sys_early_init(void)
 }
 
 void
-sysopt_release(void)
+sysopt_release(void)//系统释放
 {
     if (sysopt.support)
         free((genericptr_t) sysopt.support), sysopt.support = (char *) 0;