diff --git a/examples/upload_with_zone.py b/examples/upload_with_zone.py
index c8650d39..9d5b80fb 100644
--- a/examples/upload_with_zone.py
+++ b/examples/upload_with_zone.py
@@ -12,10 +12,10 @@
 q = Auth(access_key, secret_key)
 
 # 要上传的空间
-bucket_name = 'bucket_name'
+bucket_name = 'Bucket_Name'
 
 # 上传到七牛后保存的文件名
-key = 'a.jpg'
+key = 'my-python-logo.png'
 
 # 生成上传 Token，可以指定过期时间等
 token = q.upload_token(bucket_name, key, 3600)
@@ -30,11 +30,12 @@
 # 备用*.qiniu.com域名 不支持https上传
 # 要求https上传时，如果客户指定的两个host都错误，且sdk自动查询的第一个*.qiniup.com上传域名因意外不可用导致访问到备用*.qiniu.com会报ssl错误
 # 建议https上传时查看上面文档，指定正确的host
+# 可以填 None 不可填空字符串
 
 zone = Zone(
-    up_host='https://up.qiniup.com',
-    up_host_backup='https://upload.qiniup.com',
-    io_host='http://iovip.qbox.me',
+    up_host='http://upload.qiniup.com',
+    up_host_backup='http://up.qiniup.com',
+    io_host='https://iovip.qbox.me',
     scheme='https')
 set_default(default_zone=zone)
 
diff --git a/qiniu/region.py b/qiniu/region.py
index c87c02c5..27b8c453 100644
--- a/qiniu/region.py
+++ b/qiniu/region.py
@@ -88,14 +88,13 @@ def get_bucket_hosts(self, ak, bucket):
         hosts[self.scheme].update({'io': []})
 
         if self.up_host is not None:
-            hosts[self.scheme]['up'].append(self.scheme + "://" + self.up_host)
+            hosts[self.scheme]['up'].append(self.up_host)
 
         if self.up_host_backup is not None:
-            hosts[self.scheme]['up'].append(
-                self.scheme + "://" + self.up_host_backup)
+            hosts[self.scheme]['up'].append(self.up_host_backup)
 
         if self.io_host is not None:
-            hosts[self.scheme]['io'].append(self.scheme + "://" + self.io_host)
+            hosts[self.scheme]['io'].append(self.io_host)
 
         if len(hosts[self.scheme]) == 0 or self.io_host is None:
             hosts = compat.json.loads(self.bucket_hosts(ak, bucket))
@@ -113,7 +112,6 @@ def get_bucket_hosts(self, ak, bucket):
             'ioHosts': scheme_hosts['io'],
             'deadline': int(time.time()) + hosts['ttl']
         }
-
         self.set_bucket_hosts_to_cache(key, bucket_hosts)
         return bucket_hosts
 
@@ -127,7 +125,6 @@ def get_bucket_hosts_to_cache(self, key):
 
         if (self.host_cache[key]['deadline'] > time.time()):
             ret = self.host_cache[key]
-
         return ret
 
     def set_bucket_hosts_to_cache(self, key, val):
diff --git a/qiniu/services/storage/uploader.py b/qiniu/services/storage/uploader.py
index 1922e4c2..5849ecb7 100644
--- a/qiniu/services/storage/uploader.py
+++ b/qiniu/services/storage/uploader.py
@@ -92,12 +92,12 @@ def _form_put(up_token, key, data, params, mime_type, crc, progress_handler=None
         fields['key'] = key
 
     fields['token'] = up_token
+
     if config.get_default('default_zone').up_host:
         url = config.get_default('default_zone').up_host
     else:
         url = config.get_default('default_zone').get_up_host_by_token(up_token)
     # name = key if key else file_name
-
     fname = file_name
     if not fname or not fname.strip():
         fname = 'file_name'
@@ -105,7 +105,6 @@ def _form_put(up_token, key, data, params, mime_type, crc, progress_handler=None
     # last modify time
     if modify_time and keep_last_modified:
         fields['x-qn-meta-!Last-Modified'] = rfc_from_timestamp(modify_time)
-
     r, info = http._post_file(url, data=fields, files={'file': (fname, data, mime_type)})
     if r is None and info.need_retry():
         if info.connect_failed:
@@ -165,8 +164,7 @@ def __init__(self, up_token, key, input_stream, data_size, params, mime_type,
         self.modify_time = modify_time or time.time()
         self.file_name = file_name
         self.keep_last_modified = keep_last_modified
-        # print(self.modify_time)
-        # print(modify_time)
+
 
     def record_upload_progress(self, offset):
         record_data = {
@@ -176,7 +174,6 @@ def record_upload_progress(self, offset):
         }
         if self.modify_time:
             record_data['modify_time'] = self.modify_time
-        # print(record_data)
         self.upload_progress_recorder.set_upload_record(self.file_name, self.key, record_data)
 
     def recovery_from_record(self):
@@ -253,7 +250,6 @@ def file_url(self, host):
                 "x-qn-meta-!Last-Modified/{0}".format(urlsafe_base64_encode(rfc_from_timestamp(self.modify_time))))
 
         url = '/'.join(url)
-        # print url
         return url
 
     def make_file(self, host):
diff --git a/test_qiniu.py b/test_qiniu.py
index 1a42e6fb..bd7ef846 100644
--- a/test_qiniu.py
+++ b/test_qiniu.py
@@ -368,6 +368,38 @@ def test_putData_without_fname2(self):
             print(info)
             assert ret is not None
 
+    def test_put_zone(self):
+        zone = Zone(
+            up_host='http://upload.qiniup.com',
+            up_host_backup='http://up.qiniup.com',
+            io_host='https://iovip.qbox.me',
+            scheme='https')
+        set_default(default_zone=zone)
+        key = 'big'
+        token = self.q.upload_token(bucket_name, key)
+        localfile = create_temp_file(4 * 1024 * 1024 + 1)
+        progress_handler = lambda progress, total: progress
+        ret, info = put_file(token, key, localfile, self.params, self.mime_type, progress_handler=progress_handler)
+        print(info)
+        assert ret['key'] == key
+        remove_temp_file(localfile)
+
+    def test_put_zone_without_host(self):
+        zone = Zone(
+            up_host=None,
+            up_host_backup=None,
+            io_host=None,
+            scheme='https')
+        set_default(default_zone=zone)
+        key = 'big'
+        token = self.q.upload_token(bucket_name, key)
+        localfile = create_temp_file(4 * 1024 * 1024 + 1)
+        progress_handler = lambda progress, total: progress
+        ret, info = put_file(token, key, localfile, self.params, self.mime_type, progress_handler=progress_handler)
+        print(info)
+        assert ret['key'] == key
+        remove_temp_file(localfile)
+
 
 class ResumableUploaderTestCase(unittest.TestCase):
     mime_type = "text/plain"