save project

snake.py

@@ -54,19 +54,22 @@ while True:
         y += 30
     position.append((x, y))
     if x==apple_x and apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-    position.pop(0)
-    # 将背景图画上去
-    screen.blit(background, (0, 0))
-    # 将贪吃蛇的头画上去
-    screen.blit(snake_head, position[-1])
-    # 将贪吃蛇的身体画上去
-    for i in range(len(position)-1):
-        screen.blit(body, position[i])
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=30*num1-30
+        apple_y=30*num2-30
+    else:   
+        position.pop(0)
+        # 将背景图画上去
+        screen.blit(background, (0, 0))
+        # 将贪吃蛇的头画上去
+        screen.blit(snake_head, position[-1])
+        # 将贪吃蛇的身体画上去
+        for i in range(len(position)-1):
+            screen.blit(body, position[i])
 
     # 将果实画上去
     screen.blit(food, (apple_x,apple_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(5)
\ No newline at end of file
+    FPSCLOCK.tick(3)
\ No newline at end of file