diff --git a/.gitignore b/.gitignore
index a543da6..c861f28 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
-data/
-tmp/
+data/*
+tmp/*
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
diff --git a/data/.gitignore b/data/.gitignore
new file mode 100644
index 0000000..1c471ba
--- /dev/null
+++ b/data/.gitignore
@@ -0,0 +1,8 @@
+# .gitignore sample
+###################
+
+# Ignore all files in this dir...
+*
+
+# ... except for this one.
+!.gitignore
\ No newline at end of file
diff --git a/process_data.ipynb b/process_data.ipynb
index 8b9ddcb..9122a15 100644
--- a/process_data.ipynb
+++ b/process_data.ipynb
@@ -445,10 +445,8 @@
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
    "source": [
     "## 在click_log.csv中有20多万的creative_id没有在ad.csv出现"
    ]
diff --git a/tmp/.gitignore b/tmp/.gitignore
new file mode 100644
index 0000000..1c471ba
--- /dev/null
+++ b/tmp/.gitignore
@@ -0,0 +1,8 @@
+# .gitignore sample
+###################
+
+# Ignore all files in this dir...
+*
+
+# ... except for this one.
+!.gitignore
\ No newline at end of file