update

@@ -25,7 +25,7 @@ import (
 */
 func main() {
 	var key, iv, privateKeyPath, publicKeyPath, ip, bussinessCode, ptCode, reqBody, errFilePath, resultFilePath string
-	flag.StringVar(&key, "key", "", "key,用于")
+	flag.StringVar(&key, "key", "", "key,验证签名使用的key")
 	flag.StringVar(&iv, "iv", "", "iv，加密使用的偏移量")
 	flag.StringVar(&privateKeyPath, "privateKeyPath", "", "privateKeyPath，私钥文件所在位置（.pem文件）")
 	flag.StringVar(&publicKeyPath, "publicKeyPath", "", "publicKeyPath，平台公钥文件所在位置（.pem文件）")