diff --git a/ProxyBuilder/ShadowsocksR.py b/ProxyBuilder/ShadowsocksR.py
index 617790d..c80f991 100644
--- a/ProxyBuilder/ShadowsocksR.py
+++ b/ProxyBuilder/ShadowsocksR.py
@@ -91,4 +91,4 @@ def load(proxyInfo, socksPort, configFile): # ShadowsocksR配置载入
         'protocol_param': proxyInfo['protocolParam'],
         'obfs': proxyInfo['obfs'],
         'obfs_param': proxyInfo['obfsParam']
-    })
\ No newline at end of file
+    })
diff --git a/ProxyBuilder/__init__.py b/ProxyBuilder/__init__.py
index 2693b17..6c4b282 100644
--- a/ProxyBuilder/__init__.py
+++ b/ProxyBuilder/__init__.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python
 # -*- coding:utf-8 -*-
 
-from ProxyBuilder.main import build
-from ProxyBuilder.main import check
-from ProxyBuilder.main import destroy
+from ProxyBuilder.builder import *
+
+__all__ = [ 'build', 'check', 'destroy' ]
diff --git a/ProxyBuilder/__main__.py b/ProxyBuilder/__main__.py
new file mode 100644
index 0000000..b49f65e
--- /dev/null
+++ b/ProxyBuilder/__main__.py
@@ -0,0 +1,3 @@
+import ProxyBuilder.builder
+
+ProxyBuilder.builder.test()
diff --git a/ProxyBuilder/main.py b/ProxyBuilder/builder.py
similarity index 98%
rename from ProxyBuilder/main.py
rename to ProxyBuilder/builder.py
index 18409fd..b200563 100644
--- a/ProxyBuilder/main.py
+++ b/ProxyBuilder/builder.py
@@ -7,6 +7,7 @@ import ctypes
 import random
 import socket
 import subprocess
+
 from ProxyBuilder import Shadowsocks
 from ProxyBuilder import ShadowsocksR
 
@@ -129,3 +130,6 @@ def destroy(taskInfo): # 结束客户端并清理
     try:
         os.remove(taskInfo['file']) # 删除配置文件
     except: pass
+
+def test():
+    print("ProxyBuilder test")
diff --git a/demo.py b/demo.py
index 28d0d59..5e81a39 100644
--- a/demo.py
+++ b/demo.py
@@ -1,7 +1,7 @@
 import time
 import socket
 import requests
-import ProxyBuilder
+import ProxyBuilder as Builder
 
 def checkSocksPort(port):
     try:
@@ -40,11 +40,14 @@ testInfo = {
 }
 
 print("start")
+
+print(dir(Builder))
+
 print(testInfo)
-task = ProxyBuilder.build(testInfo, '/tmp/ProxyC')
+task = Builder.build(testInfo, '/tmp/ProxyC')
 print(task)
 time.sleep(1)
-if ProxyBuilder.check(task) == False:
+if Builder.check(task) == False:
     print("error exit")
 else:
     print("test with gstatic")
@@ -55,6 +58,5 @@ else:
         print("ok")
     else:
         print("error")
-    ProxyBuilder.destroy(task)
+    Builder.destroy(task)
     print("stop")
-    
\ No newline at end of file