diff --git a/README.md b/README.md
index acb8d4f..42b6a47 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,60 @@
-# SafaribooksonlineGetter4J
-The auto download for Safari online book
+# SafaribooksonlineGetter4J
+The auto download for Safari online book
+
+### How to use it?
+Execute the following command line:
+```
+java -jar SafariBookGetter.jar -config W:\Book\default_config.xml
+```
+
+### Configuration items
+```
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
+<properties>
+<!--[option]Browser client: FF31; FF38; IE8; IE11; CHROME-->
+<entry key="browser-version">FF38</entry>
+<!--[option]proxy host if present-->
+<entry key="proxy-host"></entry>
+<!--[option]proxy host port-->
+<entry key="proxy-port">80</entry>
+<!--[required]download save directory-->
+<entry key="save-dir">W:\Book\android-studio-essentials</entry>
+<!--[required]identity the authorized for the download pages-->
+<entry key="need-login">true</entry>
+
+<!--required when need login-->
+<!--[required]the login page url-->
+<entry key="login-url">https://www.safaribooksonline.com/accounts/login/</entry>
+<!--[required]the login page form css selector-->
+<entry key="login-form-selector">form</entry>
+<!--[option]the login page form index-->
+<entry key="login-form-index">0</entry>
+<!--[required]the login page form user name input name-->
+<entry key="login-form-username-input-name"></entry>
+<!--[required]the login page form user name value-->
+<entry key="login-form-username-input-value"></entry>
+<!--[required]the login page form user pass input name-->
+<entry key="login-form-password-input-name"></entry>
+<!--[required]the login page form user pass value-->
+<entry key="login-form-password-input-value"></entry>
+<!--[required]the login page form submit button name-->
+<entry key="login-form-submit-name"></entry>
+
+<!--option when the first page url configured-->
+<!--The catalog page url-->
+<entry key="pages-catalog-url">http://techbus.safaribooksonline.com/book/programming/android/9781784397203</entry>
+<!--The css selector for each download page anchor on catalog page-->
+<entry key="catalog-pagelinks-selector">div.catalog_container a[href*='9781784397203']</entry>
+
+
+<!--option when the catalog page url configured-->
+<!--The first page url-->
+<entry key="pages-first-url">http://techbus.safaribooksonline.com/book/programming/android/9781784397203/android-studio-essentials/index_html</entry>
+<!--The css selector for next chain page anchor on each page -->
+<entry key="pages-next-anchor-selector">a.next[title*='Next (Key: n)']</entry>
+
+</properties>
+
+```
+
diff --git a/dist/SafariBookGetter.jar b/dist/SafariBookGetter.jar
new file mode 100644
index 0000000..cb1acc0
Binary files /dev/null and b/dist/SafariBookGetter.jar differ
diff --git a/src/openthinks/others/webpages/safaribook/SafariBookLaunch.java b/src/openthinks/others/webpages/safaribook/SafariBookLaunch.java
index 1376f7f..6467d80 100644
--- a/src/openthinks/others/webpages/safaribook/SafariBookLaunch.java
+++ b/src/openthinks/others/webpages/safaribook/SafariBookLaunch.java
@@ -52,13 +52,13 @@ protected static SafariBookConfigure initialConfig(String[] args) {
 		//		config.setNextChainPageAnchorSelector("");
 		//		config.setProxyHost("");
 		//		config.setProxyPort(80);
-		String config_path = "W:\\book\\config_default.xml";
+		String config_path = null;
 		if (args != null && args.length > 0) {
 			if ("-help".equalsIgnoreCase(args[0])) {
 				showUsage();
 			}
 			if ("-config".equalsIgnoreCase(args[0])) {
-				if (args.length > 2) {
+				if (args.length >= 2) {
 					config_path = args[1];
 				} else {
 					System.out.println("miss configure file path!");