diff --git a/2017/Go coding in go way.pdf b/2017/Go coding in go way.pdf
new file mode 100644
index 0000000..346518b
Binary files /dev/null and b/2017/Go coding in go way.pdf differ
diff --git a/2017/Go in TiDB.pdf b/2017/Go in TiDB.pdf
new file mode 100644
index 0000000..be1125c
Binary files /dev/null and b/2017/Go in TiDB.pdf differ
diff --git a/2017/Go在大数据开发中的经验总结.pdf b/2017/Go在大数据开发中的经验总结.pdf
new file mode 100644
index 0000000..7f5178a
Binary files /dev/null and b/2017/Go在大数据开发中的经验总结.pdf differ