diff --git a/.gitignore b/.gitignore
index aa69fb9b..b1b7fe97 100644
--- a/.gitignore
+++ b/.gitignore
@@ -57,6 +57,7 @@ build/Makefile
 .vscode
 .python-version
 .gitignore
+temp/
 
 
 
diff --git a/examples/FutuTrader/temp/ContractData.vt.dat b/examples/FutuTrader/temp/ContractData.vt.dat
deleted file mode 100644
index 10634b68..00000000
Binary files a/examples/FutuTrader/temp/ContractData.vt.dat and /dev/null differ
diff --git a/examples/FutuTrader/temp/ContractData.vt.dir b/examples/FutuTrader/temp/ContractData.vt.dir
deleted file mode 100644
index 60f03216..00000000
--- a/examples/FutuTrader/temp/ContractData.vt.dir
+++ /dev/null
@@ -1 +0,0 @@
-'data', (0, 1462865)
diff --git a/requirements.txt b/requirements.txt
index 2155d7da..5b2fb05b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,3 +12,4 @@ flask-cors
 gevent-websocket
 pyjwt
 ccxt
+pyqtgraph