save project

snake.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
 
 
@@ -23,6 +23,9 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 setheading = "right"
 setheading = "right"
 snake_head = right
 snake_head = right
 
 
+apple_x = 360
+apple_y = 300
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
@@ -44,15 +47,23 @@ while True:
 
 
     # 设置贪吃蛇的头部坐标
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
     if setheading == "right":
-        x += 30
+        x += 10
     elif setheading == "left":
     elif setheading == "left":
-        x -= 30
+        x -= 10
     elif setheading == "up":
     elif setheading == "up":
-        y -= 30
+        y -= 10
     else:
     else:
-        y += 30
+        y += 10
     position.append((x, y))
     position.append((x, y))
+    if x==apple_x and y == apple_y:
+        num1 = random.randint(1,22)
+        num2 = random.randint(1,16)
+        apple_x = num1*30-30
+        apple_y = num2*30-30
+    else:
         position.pop(0)
         position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去
@@ -62,7 +73,7 @@ while True:
         screen.blit(body, position[i])
         screen.blit(body, position[i])
 
 
     # 将果实画上去
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x,apple_y))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(3)
+    FPSCLOCK.tick(10)
\ No newline at end of file