diff --git a/code/.ipynb_checkpoints/mnist-checkpoint.ipynb b/code/.ipynb_checkpoints/mnist-checkpoint.ipynb
new file mode 100644
index 0000000..958f5a3
--- /dev/null
+++ b/code/.ipynb_checkpoints/mnist-checkpoint.ipynb
@@ -0,0 +1,32 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "tensorflow-2.0",
+   "language": "python",
+   "name": "tensorflow-2.0"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/code/mnist.ipynb b/code/mnist.ipynb
new file mode 100644
index 0000000..958f5a3
--- /dev/null
+++ b/code/mnist.ipynb
@@ -0,0 +1,32 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "tensorflow-2.0",
+   "language": "python",
+   "name": "tensorflow-2.0"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/data/mnist.npz b/data/mnist.npz
new file mode 100644
index 0000000..e7baa20
Binary files /dev/null and b/data/mnist.npz differ
diff --git a/output/joblog/4c7e1eb6-2700-465b-8101-b75e7148c36b/uaitrain-PrepareData-00001.log b/output/joblog/4c7e1eb6-2700-465b-8101-b75e7148c36b/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..3378c35
--- /dev/null
+++ b/output/joblog/4c7e1eb6-2700-465b-8101-b75e7148c36b/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-27 10:03:19]  Start Pull Docker Image
+[2020-11-27 10:03:19]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-27 10:14:42]  Start Prepare Data
+[2020-11-27 10:15:16]  Prepare Data Finish!!!
diff --git a/output/joblog/6972ef48-c5ce-4ae2-bd6c-f44eb3e61f5e/uaitrain-PrepareData-00001.log b/output/joblog/6972ef48-c5ce-4ae2-bd6c-f44eb3e61f5e/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..052a5f0
--- /dev/null
+++ b/output/joblog/6972ef48-c5ce-4ae2-bd6c-f44eb3e61f5e/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-28 17:56:05]  Start Pull Docker Image
+[2020-11-28 17:56:06]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-28 17:56:08]  Start Prepare Data
+[2020-11-28 17:56:45]  Prepare Data Finish!!!
diff --git a/output/joblog/74b3128c-9318-4a76-b034-702c69ea7b9a/uaitrain-PrepareData-00001.log b/output/joblog/74b3128c-9318-4a76-b034-702c69ea7b9a/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..a7617fe
--- /dev/null
+++ b/output/joblog/74b3128c-9318-4a76-b034-702c69ea7b9a/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-27 16:35:20]  Start Pull Docker Image
+[2020-11-27 16:35:20]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-27 16:35:22]  Start Prepare Data
+[2020-11-27 16:35:50]  Prepare Data Finish!!!
diff --git a/output/joblog/8636d078-416b-4fd6-a431-5dba2481f1bc/uaitrain-PrepareData-00001.log b/output/joblog/8636d078-416b-4fd6-a431-5dba2481f1bc/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..80ddc57
--- /dev/null
+++ b/output/joblog/8636d078-416b-4fd6-a431-5dba2481f1bc/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-29 15:01:47]  Start Pull Docker Image
+[2020-11-29 15:01:48]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-29 15:01:50]  Start Prepare Data
+[2020-11-29 15:02:19]  Prepare Data Finish!!!
diff --git a/output/joblog/a8708a3b-8039-4016-a765-584ca23f5ae9/uaitrain-PrepareData-00001.log b/output/joblog/a8708a3b-8039-4016-a765-584ca23f5ae9/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..63c8858
--- /dev/null
+++ b/output/joblog/a8708a3b-8039-4016-a765-584ca23f5ae9/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-27 16:32:50]  Start Pull Docker Image
+[2020-11-27 16:32:51]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-27 16:32:52]  Start Prepare Data
+[2020-11-27 16:33:20]  Prepare Data Finish!!!
diff --git a/output/joblog/bc18545b-b8d6-432d-82ea-170269bebcbe/uaitrain-PrepareData-00001.log b/output/joblog/bc18545b-b8d6-432d-82ea-170269bebcbe/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..79e3495
--- /dev/null
+++ b/output/joblog/bc18545b-b8d6-432d-82ea-170269bebcbe/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-28 17:56:08]  Start Pull Docker Image
+[2020-11-28 17:56:09]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-28 17:56:11]  Start Prepare Data
+[2020-11-28 17:56:37]  Prepare Data Finish!!!
diff --git a/output/joblog/f1465661-b0d1-4046-a2b7-7520b6efcd58/uaitrain-PrepareData-00001.log b/output/joblog/f1465661-b0d1-4046-a2b7-7520b6efcd58/uaitrain-PrepareData-00001.log
new file mode 100644
index 0000000..30bb181
--- /dev/null
+++ b/output/joblog/f1465661-b0d1-4046-a2b7-7520b6efcd58/uaitrain-PrepareData-00001.log
@@ -0,0 +1,4 @@
+[2020-11-27 16:45:41]  Start Pull Docker Image
+[2020-11-27 16:45:42]  Get docker image uhub.service.ucloud.cn/uaishare/gpu_ubuntu-16.04_cuda10.0_cudnn7.3_anaconda_py3.6:v2.2
+[2020-11-27 16:45:43]  Start Prepare Data
+[2020-11-27 16:46:10]  Prepare Data Finish!!!