diff --git a/bin/gen_cert.sh b/bin/gen_cert.sh
index 49a064e..e2eb776 100644
--- a/bin/gen_cert.sh
+++ b/bin/gen_cert.sh
@@ -1,4 +1,6 @@
 #!/bin/bash
 
+script_dir="$(dirname "$(realpath "$0")")"   # 当前脚本所在目录的绝对路径
+key_dir="$script_dir/../key"
 
-openssl req -x509 -nodes -newkey ec:<(openssl ecparam -name prime256v1) -keyout ../key/server.key -out ../key/server.crt -subj "/CN=bing.com" -days 36500 
\ No newline at end of file
+openssl req -x509 -nodes -newkey ec:<(openssl ecparam -name prime256v1) -keyout "$key_dir/server.key" -out "$key_dir/server.crt" -subj "/CN=bing.com" -days 36500 
\ No newline at end of file