auto save

1.py

+import turtle
+turtle.fillcolor("red")
+turtle.speed(1)
+turtle.begin_fill()
+
+turtle.forward(180)
+turtle.left(90)
+turtle.forward(180)
+turtle.goto(0,0)
+turtle.end_fill()
+turtle.fillcolor("yellow")
+turtle.begin_fill()
+turtle.forward(180)
+turtle.right(90)
+turtle.forward(180)
+turtle.end_fill()
+turtle.hideturtle()
+turtle.done()
+

snake.py

@@ -53,11 +53,18 @@ while True:
         y -= 30
     else:
         y += 30
+    if (x,y) in position:
+        exit()
     position.append((x, y))
     if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-    position.pop(0)
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=num1*30-30
+        apple_y=num2*30-30
+    else:
+        position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -70,4 +77,4 @@ while True:
     screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(5)
\ No newline at end of file