save project

snake.py

@@ -56,12 +56,16 @@ while True:
         y += 30
         y += 30
     
     
     position.append((x, y))
     position.append((x, y))
-    position.pop(0)
+    
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     if x == apple_X and y == apple_y:
     if x == apple_X and y == apple_y:
-        apple_X = random.randint(0,660)
-        apple_y = random.randint(0,480)
+        num1 = random.randint(0,21)
+        num2 = random.randint(0,15)
+        apple_X = num1*30
+        apple_y = num2*30
+    else:
+        position.pop(0)
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
     screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去