save project

snake.py

@@ -55,8 +55,10 @@ while True:
         y += 30
     position.append((x, y))
     ifx==apple_x and y==apple_y
-        apple_x=random .randint(0,660)
-        apple_y=random .randint(0,480)
+        nu1=random .randint(1,22)
+        nu2=random .randint(1,16)
+        apple_x=num1*30-30
+        apple_y=num2*30-30
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))