diff --git a/main.py b/main.py
index 38423c8..095468e 100644
--- a/main.py
+++ b/main.py
@@ -4,7 +4,7 @@
 author:kdxcxs@github.com
 '''
 
-import sys,base64
+import sys
 from PyQt5.QtWidgets import QMainWindow,QFileDialog,QDialog,QApplication
 from PyQt5.QtGui import QPixmap,QIcon
 from PyQt5.QtCore import QByteArray
@@ -14,10 +14,10 @@ from dumping import Ui_dumpingDialog
 from ncmdump import dump
 
 class mainWindow(QMainWindow):
-    def __init__(self, scalRate):
+    def __init__(self, scaleRate):
         super(mainWindow, self).__init__(None)
         self.ui = Ui_MainWindow()
-        self.ui.setupUi(self,scalRate)
+        self.ui.setupUi(self,scaleRate)
         self.setupIcon()
         self.dumpingdialog = dumpingDialog(self,self.icon)
         self.initSignal()
@@ -52,8 +52,8 @@ class mainWindow(QMainWindow):
 class ncmDumper(object):
     def __init__(self):
         self.app = QApplication(sys.argv)
-        self.scalRate = self.app.screens()[0].logicalDotsPerInch()/96
-        self.mainwindow = mainWindow(self.scalRate)
+        self.scaleRate = self.app.screens()[0].logicalDotsPerInch()/96
+        self.mainwindow = mainWindow(self.scaleRate)
 
 class dumpingDialog(QDialog):
     def __init__(self,parent,icon):
diff --git a/mainWindow.py b/mainWindow.py
index e4841ec..ba5c7a2 100644
--- a/mainWindow.py
+++ b/mainWindow.py
@@ -11,14 +11,14 @@ from PyQt5 import QtCore, QtGui, QtWidgets
 
 
 class Ui_MainWindow(object):
-    def setupUi(self, MainWindow,scalRate):
+    def setupUi(self, MainWindow,scaleRate):
         MainWindow.setObjectName("MainWindow")
         MainWindow.setWindowModality(QtCore.Qt.NonModal)
-        MainWindow.resize(400*scalRate, 200*scalRate)
+        MainWindow.resize(400*scaleRate, 200*scaleRate)
         self.centralwidget = QtWidgets.QWidget(MainWindow)
         self.centralwidget.setObjectName("centralwidget")
         self.label = QtWidgets.QLabel(self.centralwidget)
-        self.label.setGeometry(QtCore.QRect(40*scalRate, 20*scalRate, 320*scalRate, 40*scalRate))
+        self.label.setGeometry(QtCore.QRect(40*scaleRate, 20*scaleRate, 320*scaleRate, 40*scaleRate))
         font = QtGui.QFont()
         font.setFamily("幼圆")
         font.setPointSize(24)
@@ -28,7 +28,7 @@ class Ui_MainWindow(object):
         self.label.setAlignment(QtCore.Qt.AlignCenter)
         self.label.setObjectName("label")
         self.commandLinkButton = QtWidgets.QCommandLinkButton(self.centralwidget)
-        self.commandLinkButton.setGeometry(QtCore.QRect(110*scalRate, 100*scalRate, 180*scalRate, 60*scalRate))
+        self.commandLinkButton.setGeometry(QtCore.QRect(110*scaleRate, 100*scaleRate, 180*scaleRate, 60*scaleRate))
         font = QtGui.QFont()
         font.setFamily("Segoe UI")
         font.setPointSize(10)