diff --git a/bin/gen_cert.sh b/bin/gen_cert.sh
index 4603719..7fac348 100644
--- a/bin/gen_cert.sh
+++ b/bin/gen_cert.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 
-SCRIPT_DIR="$(dirname "$(realpath "$0")")"   # 当前脚本所在目录的绝对路径
-KEY_DIR=$(readlink -f "$SCRIPT_DIR/../key")  # key目录绝对路径
+script_dir="$(dirname "$(realpath "$0")")"   # 当前脚本所在目录的绝对路径
+key_dir=$(readlink -f "$script_dir/../key")  # key目录绝对路径
+domain="bing.com"  # 域名
 
-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
+openssl req -x509 -nodes -newkey ec:<(openssl ecparam -name prime256v1) -keyout "$key_dir/server.key" -out "$key_dir/server.crt" -subj "/CN=$domain" -days 36500
\ No newline at end of file
diff --git a/bin/init.sh b/bin/init.sh
index 53bb13a..42bfbd1 100644
--- a/bin/init.sh
+++ b/bin/init.sh
@@ -1,10 +1,9 @@
 #!/bin/bash
 
-SCRIPT_DIR=$(cd "$(dirname "$0")"; pwd) # 脚本绝对路径
+script_dir=$(cd "$(dirname "$0")"; pwd) # 脚本绝对路径
 
 # 更新密码
-bash "$SCRIPT_DIR/update_password.sh"
+bash "$script_dir/update_password.sh"
 
 # 更新证书
-bash "$SCRIPT_DIR/gen_cert.sh"
-
+bash "$script_dir/gen_cert.sh"
\ No newline at end of file
diff --git a/bin/print_share_link.sh b/bin/print_share_link.sh
index 0704fe8..522edcf 100644
--- a/bin/print_share_link.sh
+++ b/bin/print_share_link.sh
@@ -8,22 +8,21 @@ then
 fi
 
 # 获取脚本所在目录的上级目录路径
-SCRIPT_DIR=$(cd "$(dirname "$0")"; pwd)
-PARENT_DIR=$(dirname "$SCRIPT_DIR")
+script_dir=$(cd "$(dirname "$0")"; pwd)
 
 # 读取 config.json 文件
-CONFIG=$(cat "$PARENT_DIR/config.json")
+config=$(cat "$script_dir/../config.json")
 
 # 提取所需信息
-PASSWORD=$(echo "$CONFIG" | jq -r '.auth.password')
-SNI=$(echo "$CONFIG" | jq -r '.masquerade.proxy.url' | awk -F'/' '{print $3}')
-IPV4=$(curl -4 -sSL --connect-timeout 3 --retry 2 ip.sb || echo "null") # 本机IPV4地址
-PORT=$(echo "$CONFIG" | jq -r '.listen' | cut -d':' -f2)
+password=$(echo "$config" | jq -r '.auth.password')
+sni=$(echo "$config" | jq -r '.masquerade.proxy.url' | awk -F'/' '{print $3}')
+ipv4=$(curl -4 -sSL --connect-timeout 3 --retry 2 ip.sb || echo "null") # 本机IPV4地址
+port=$(echo "$config" | jq -r '.listen' | cut -d':' -f2)
 
 # 构建分享链接
-SHARE_LINK="hysteria2://${PASSWORD}@${IPV4}:${PORT}/?sni=${SNI}&insecure=1#${IPV4}"
+share_link="hysteria2://${password}@${ipv4}:${port}/?sni=${sni}&insecure=1#${ipv4}"
 
 # 输出分享链接
 echo -e "\033[32m"
-echo "分享链接: $SHARE_LINK"
+echo "分享链接: $share_link"
 echo -e "\033[0m"
\ No newline at end of file
diff --git a/bin/update_docker_images.sh b/bin/update_docker_images.sh
index df82560..03a1be4 100644
--- a/bin/update_docker_images.sh
+++ b/bin/update_docker_images.sh
@@ -1,19 +1,19 @@
 #!/bin/bash
 
-SCRIPT_DIR="$(dirname "$(realpath "$0")")"   # 当前脚本所在目录的绝对路径
-DOCKER_COMPOSE_FILE=$(readlink -f "$SCRIPT_DIR/../docker-compose.yml")  # docker-compose.yaml文件路径
+script_dir="$(dirname "$(realpath "$0")")"   # 当前脚本所在目录的绝对路径
+docker_compose_file=$(readlink -f "$script_dir/../docker-compose.yml")  # docker-compose.yaml文件路径
 
 # 检查是否存在 docker-compose.yml 文件
-if [ ! -f $DOCKER_COMPOSE_FILE ]; then
+if [ ! -f $docker_compose_file ]; then
     echo "Error: docker-compose.yml 文件不存在."
     exit 1
 fi
 
 echo "正在关闭容器.."
-docker-compose -f $DOCKER_COMPOSE_FILE down 
+docker-compose -f $docker_compose_file down 
 
 echo "正在更新镜像.."
-docker-compose -f $DOCKER_COMPOSE_FILE pull  
+docker-compose -f $docker_compose_file pull  
 
 echo "正在启动容器.."
-docker-compose -f $DOCKER_COMPOSE_FILE up -d 
\ No newline at end of file
+docker-compose -f $docker_compose_file up -d
\ No newline at end of file