diff --git a/backup.sh b/backup.sh
index 1a0725c..fbe8b71 100644
--- a/backup.sh
+++ b/backup.sh
@@ -2,10 +2,16 @@
 # 传入的种子备份参数
 if [ $1 ]; then
 	AppName=$1
+else
+	echo 'AppName not null'
+	exit 1
 fi
 
 if [ $2 ]; then
 	torrentDir=$2
+else
+	echo 'torrentDir not null'
+	exit 2
 fi
 
 # 脚本当前目录