diff --git a/calc.py b/calc.py
index ffff18cc923fdfec663adb198a1482137680db71..e7c6b9e4026b2373355f91d2101bb2e8d72a3427 100644
--- a/calc.py
+++ b/calc.py
@@ -69,7 +69,8 @@ class Calc(QMainWindow):
                 if self.y is not None:  #有y
                     self.y =self.y + value
                 else:#无y
-                    self.y = value
+                    if value != '0':
+                        self.y = value
                 self.text_result.setText(self.y)
 
             else:#无运算符
@@ -77,21 +78,25 @@ class Calc(QMainWindow):
                     self.x = self.x + value
 
                 else:
-                    self.x = value
+                    if value != '0':
+                        self.x = value
                 self.text_result.setText(self.x)
 
         
         # 开始处理运算符
         # 1.点运算符时记录运算符
+        # 2.点运算符时计算结果，然后记录运算符(x,y,oper都有值)
         # 2.点运算符时记录运算符并计算结果(x,y,oper都有值)
         # 3.点运算符时记录运算符，并将x置为0(x无值)
 
+
         elif value in "+-*/":
-            self.operator = value
+            
             if self.x is None:
                 self.x = 0
             if self.x and self.y and self.operator:
                 self.calculate()
+            self.operator = value
 
         # 处理点击等号的操作
         # 1.点等号时计算结果 (x,y,oper都有值）