save project

snake.py

@@ -22,7 +22,6 @@ x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 food_x=300
 food_y=300
-
 setheading = "right"
 snake_head = right
 
@@ -55,7 +54,6 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -63,9 +61,14 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
+
     if x==food_x and y==food_y:
-        food_x=random.randint(0,660)
-        food_y=random.randint(0,480)
+        gj1=random.randint(1,22)
+        gj2=random.randint(1,16)
+        food_x=gj1*30-30
+        food_y=gj2*30-30
+    else:
+        position.pop(0)
     # 将果实画上去
     screen.blit(food, (food_x, food_y))
     # 刷新画面