updata pyqtgraph Demo

weike32 · weike32 · commit e77811a68afa · 2019-05-21T18:16:30.000+08:00
diff --git a/PyQtGraph/Data/graphTest.py b/PyQtGraph/Data/graphTest.py
@@ -7,6 +7,7 @@
 # WARNING! All changes made in this file will be lost!
 
 from PyQt5 import QtCore, QtGui, QtWidgets
+
 class graph_Form(object):
     def setupUi(self, Form):
         Form.setObjectName("Form")
