save project

snake.py

@@ -57,7 +57,7 @@ while True:
         num1 = random.randint(1,22)
         num2 = random.randint(0,16)
         apple_x = 30*num1-30
-        apple_y = 30*num1-30
+        apple_y = 30*num2-30
     else:   
         position.pop(0)
     # 将背景图画上去
@@ -69,7 +69,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (apple_x,apple_x ))
+    screen.blit(food, (apple_x,apple_y ))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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