diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 1edd3bcf5..411481f0e 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -23,23 +23,23 @@ class ApplicationController < ActionController::Base
 
 	# 所有请求必须合法签名
 	def check_sign
-		# if !Rails.env.development?
-		# 	Rails.logger.info("66666  #{params}")
-		# 	# suffix = request.url.split(".").last.split("?").first
-		# 	# suffix_arr = ["xls", "xlsx", "pdf", "zip"] # excel文件先注释
-		# 	# unless suffix_arr.include?(suffix)
-		# 		if params[:client_key].present?
-		# 			randomcode = params[:randomcode]
-		# 			# tip_exception(501, "请求不合理") unless (Time.now.to_i - randomcode.to_i).between?(0,5)
-		#
-		# 			sign = Digest::MD5.hexdigest("#{OPENKEY}#{randomcode}")
-		# 			Rails.logger.info("2222  #{sign}")
-		# 			tip_exception(501, "请求不合理") if sign != params[:client_key]
-		# 		else
-		# 			tip_exception(501, "请求不合理")
-		# 		end
-		# 	# end
-		# end
+		if !Rails.env.development?
+			Rails.logger.info("66666  #{params}")
+			# suffix = request.url.split(".").last.split("?").first
+			# suffix_arr = ["xls", "xlsx", "pdf", "zip"] # excel文件先注释
+			# unless suffix_arr.include?(suffix)
+				if params[:client_key].present?
+					randomcode = params[:randomcode]
+					# tip_exception(501, "请求不合理") unless (Time.now.to_i - randomcode.to_i).between?(0,5)
+
+					sign = Digest::MD5.hexdigest("#{OPENKEY}#{randomcode}")
+					Rails.logger.info("2222  #{sign}")
+					tip_exception(501, "请求不合理") if sign != params[:client_key]
+				else
+					tip_exception(501, "请求不合理")
+				end
+			# end
+		end
 	end
 
 	# 全局配置参数
diff --git a/lib/tasks/statistic_subject_info.rake b/lib/tasks/statistic_subject_info.rake
index c510c60fb..c17823a33 100644
--- a/lib/tasks/statistic_subject_info.rake
+++ b/lib/tasks/statistic_subject_info.rake
@@ -9,8 +9,8 @@ namespace :subjects do
     buffer_size = 0
     column_value = "subject_id, study_count, course_study_count, initiative_study, passed_count, course_used_count, " +
         "school_used_count, created_at, updated_at"
-    subjects.find_in_batches(batch_size: 50) do |s, index|
-      Parallel.each_with_index(s, in_processes: 4) do |subject|
+    subjects.find_in_batches(batch_size: 50) do |s|
+      Parallel.each(s, in_processes: 4) do |subject|
         puts("---------------------data_statistic: #{subject.id}")
         Rails.logger.info("---------------------data_statistic: #{subject.id}")
         data = Subjects::DataStatisticService.new(subject)
@@ -23,7 +23,8 @@ namespace :subjects do
             "#{data.passed_count}, #{data.course_used_count}, #{data.school_used_count}, " +
             "'#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')")
         buffer_size += 1
-        if buffer_size == 1000 || subjects.count == (index+1)
+        puts "buffer_size: #{buffer_size}; subject: #{subject == s.last}; index:#{index+1}"
+        if buffer_size == 1000 || subject == s.last
           sql = "REPLACE INTO subject_records(#{column_value}) VALUES #{str}"
           puts sql
           ActiveRecord::Base.connection.execute sql
diff --git a/public/favicon.ico b/public/favicon.ico
index 05b9d163e..9c65fe8c7 100755
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/react/src/common/components/form/City.js b/public/react/src/common/components/form/City.js
index b397c8b59..520a2ebbf 100644
--- a/public/react/src/common/components/form/City.js
+++ b/public/react/src/common/components/form/City.js
@@ -120,7 +120,7 @@ const options = [{
   value: '广东',
   label: '广东',
   children: [{
-    value: "广州", 
+    value: "广州",
     label: '广州'
   },{
     value: '深圳',
@@ -493,6 +493,9 @@ const options = [{
   children: [{
     value: "兰州",
     label: '兰州'
+  },{
+    value: "嘉峪关",
+    label: '嘉峪关'
   },{
     value: '白银',
     label: '白银'
@@ -537,7 +540,7 @@ const options = [{
   value: '广西',
   label: '广西',
   children: [{
-    value: "南宁", 
+    value: "南宁",
     label: '南宁'
   },{
     value: '百色',
diff --git a/public/react/src/modules/paths/statics/index.js b/public/react/src/modules/paths/statics/index.js
index 46689311d..b10809f99 100644
--- a/public/react/src/modules/paths/statics/index.js
+++ b/public/react/src/modules/paths/statics/index.js
@@ -247,7 +247,7 @@ const App = (props) => {
           <section className="static_section_header">
             <div className="header_title">
               <span className="title-p">学习统计</span>
-              <span className="title-sub">Android综合实训之物联网移动应用</span>
+              <span className="title-sub"></span>
             </div>
             <div className="header-number header-flex">
               <StaticNumberAndTxt
diff --git a/public/react/src/modules/paths/statics/index.scss b/public/react/src/modules/paths/statics/index.scss
index 33c65136a..9b74791fa 100644
--- a/public/react/src/modules/paths/statics/index.scss
+++ b/public/react/src/modules/paths/statics/index.scss
@@ -30,13 +30,13 @@
         font-weight: bold;
 
         &::before{
-          position: absolute;
-          content: '';
-          border-left: 1px solid rgba(192,196,204,1);
-          right: -10px;
-          top: 2px;
-          bottom: 0px;
-          margin-left: 10px;
+          //position: absolute;
+          //content: '';
+          //border-left: 1px solid rgba(192,196,204,1);
+          //right: -10px;
+          //top: 2px;
+          //bottom: 0px;
+          //margin-left: 10px;
         }
       }
       .title-sub{
@@ -105,7 +105,7 @@
     .ant-table-thead{
       th{
         background: rgba(241,248,255,1);
-        
+
       }
       .ant-table-column-title{
         color: #303133;
@@ -152,5 +152,5 @@
 }
 
 .tool-clazz{
-  max-width: 200px !important;   
+  max-width: 200px !important;
 }