From 425784a612459bdf761aca86afbf9e6e12653d3b Mon Sep 17 00:00:00 2001
From: ShuiRuTian <158983297@qq.com>
Date: Wed, 6 Jan 2021 16:01:48 +0800
Subject: [PATCH] add analytics md.

---
 analytics.md | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 analytics.md

diff --git a/analytics.md b/analytics.md
new file mode 100644
index 000000000000..ff32318674d6
--- /dev/null
+++ b/analytics.md
@@ -0,0 +1,28 @@
+# file name change
+
+change module system and `use` clauses.
+
+This means we would not change all possiable places for now.(I think this is hard to implement even in future.)
+
+## module system
+
+### physical module and logic module
+
+each file and folder(lib.rs in the folder) is a physical module.
+
+`use` and `pub` could import and export module as logic.
+
+logic module could be seen as `namespace`.
+
+Only logic module matters.
+
+### module tree
+
+### module declaration
+
+> logic module could be defined in its ancestor's folder.
+
+> module
+
+## use clauses
+