save project

snake.py

@@ -53,19 +53,21 @@ while True:
         y -= 30
     else:
         y += 30
+    position.append((x, y))
     if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-
-
-
+        a1=random.randint(1,22)
+        a2=random.randint(1,16)
+        apple_x=30*a1-30
+        apple_y=30*a2-30
+    else:
+        position.pop(0)
 
 
 
 
 
-    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