diff --git a/aw/python/distributed/distribute/distribute.py b/aw/python/distributed/distribute/distribute.py
index ad29c82ecfbba0fb086dcfb6b1235ec1769e755d..1a365829892579ff6201a03c2877d11b5712bf7e 100755
--- a/aw/python/distributed/distribute/distribute.py
+++ b/aw/python/distributed/distribute/distribute.py
@@ -254,14 +254,17 @@ class Distribute:
 
         if self.hdc_tools != "hdc":
             if self._query_device_uuid(self.major) != '':
-                device_uuid_list += self._query_device_uuid(self.major) + ","
+                device_uuid_list = "{}{},".format(
+                    device_uuid_list, self._query_device_uuid(self.major))
 
             if self._query_device_ip(device) != "":
-                agent_ip_list += self._query_device_ip(device) + ","
+                agent_ip_list = "{}{},".format(
+                    agent_ip_list, self._query_device_ip(device))
 
             for agent in self.agent_list:
                 if self._query_device_uuid(agent):
-                    device_uuid_list += self._query_device_uuid(agent) + ","
+                    device_uuid_list = "{}{},".format(
+                        device_uuid_list, self._query_device_uuid(agent))
 
             config_info = DEVICE_INFO_TEMPLATE % (agent_ip_list, "8888",
                                                   device_uuid_list)
@@ -270,14 +273,17 @@ class Distribute:
             self._write_device_config(config_info, config_agent_file)
         else:
             if self._query_device_agent_uuid(self.major):
-                device_uuid_list += self._query_device_agent_uuid(self.major) + ","
+                device_uuid_list = "{}{},".format(
+                    device_uuid_list, self._query_device_agent_uuid(self.major))
 
             if self._query_device_hdc_ip(device):
-                agent_ip_list += self._query_device_hdc_ip(device) + ","
+                agent_ip_list = "{}{},".format(
+                    agent_ip_list, self._query_device_hdc_ip(device))
 
             for agent in self.agent_list:
                 if self._query_device_agent_uuid(agent):
-                    device_uuid_list += self._query_device_agent_uuid(agent) + ","
+                    device_uuid_list = "{}{},".format(
+                        device_uuid_list, self._query_device_agent_uuid(agent))
 
             config_info = DEVICE_INFO_TEMPLATE % (agent_ip_list, "8888",
                                                   device_uuid_list)
@@ -291,12 +297,14 @@ class Distribute:
 
         if self.hdc_tools != "hdc":
             if self._query_device_uuid(self.major) != "NoneTyple":
-                device_uuid_list += self._query_device_uuid(self.major) + ","
+                device_uuid_list = "{}{},".format(
+                    device_uuid_list, self._query_device_uuid(self.major))
 
             for agent in self.agent_list:
                 if self._query_device_ip(agent) != "" and self._query_device_uuid(agent) != "":
-                    agent_ip_list += self._query_device_ip(agent) + ","
-                    device_uuid_list += self._query_device_uuid(agent) + ","
+                    agent_ip_list = "{}{},".format(agent_ip_list, self._query_device_ip(agent))
+                    device_uuid_list = "{}{},".format(
+                        device_uuid_list, self._query_device_uuid(agent))
 
             config_info = DEVICE_INFO_TEMPLATE % (agent_ip_list, "8888",
                                                   device_uuid_list)
@@ -305,12 +313,14 @@ class Distribute:
             self._write_device_config(config_info, config_major_file)
         else:
             if self._query_device_major_uuid(self.major):
-                device_uuid_list += self._query_device_major_uuid(self.major) + ","
+                device_uuid_list = "{}{},".format(
+                    device_uuid_list, self._query_device_major_uuid(self.major))
 
             for agent in self.agent_list:
                 if self._query_device_major_uuid(agent):
-                    agent_ip_list += self._query_device_hdc_ip(agent) + ","
-                    device_uuid_list += self._query_device_major_uuid(agent) + ","
+                    agent_ip_list = "{}{},".format(agent_ip_list, self._query_device_hdc_ip(agent))
+                    device_uuid_list = "{}{},".format(
+                        device_uuid_list, self._query_device_major_uuid(agent))
             config_info = DEVICE_INFO_TEMPLATE % (agent_ip_list, "8888",
                                                   device_uuid_list)
 
diff --git a/install.sh b/install.sh
index d74380b0937900ddf221d02349bbd97ad468c25a..35b39453db8528048fd8c1f6d19d498ea92a177a 100755
--- a/install.sh
+++ b/install.sh
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+set -e
 
 sudo cp ohtest /usr/bin/
 
diff --git a/libs/fuzzlib/README_zh.md b/libs/fuzzlib/README_zh.md
index bd8d505629bebccd87a7766d05e7a48d1cf9b99f..3196a74d33ae46a42744dcaccc470e4e21a5be83 100644
--- a/libs/fuzzlib/README_zh.md
+++ b/libs/fuzzlib/README_zh.md
@@ -316,10 +316,3 @@ run -t FUZZ -ss developer_test -tm calculator
   ```
   details_report.html
   ```
-
-  最新测试报告
-
-  ```
-  reports/latest
-  ```
-
diff --git a/libs/fuzzlib/tools/run_result.py b/libs/fuzzlib/tools/run_result.py
index 875403b25f9b53f458c83ac2c02c0d856a0bff62..b8c1931e88ba2d775725fb6f4c0d0af577cd2465 100644
--- a/libs/fuzzlib/tools/run_result.py
+++ b/libs/fuzzlib/tools/run_result.py
@@ -72,9 +72,11 @@ class RunResult():
         result = ansi_escape.sub('', log_str)
         return result
 
+    # 获取日志
     def get_log(self):
         return "code :{}, msg: {}".format(self.code, self.data)
 
+    # 分析结果
     def analysis(self, result, outdir):
         pass
 
diff --git a/local_coverage/automate_execute/coverage.sh b/local_coverage/automate_execute/coverage.sh
index af3848ff5b73d9fab54fda75a3d6571815e8ca3c..8a50364efcdd3a2d63fc2b38de84e00dfc27eb2a 100644
--- a/local_coverage/automate_execute/coverage.sh
+++ b/local_coverage/automate_execute/coverage.sh
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+set -e
 
 echo "++++++++++++++++++++start install package+++++++++++++++++++++++"