save project

snake.py

@@ -55,10 +55,14 @@ while True:
     else:
     else:
         y += 30
         y += 30
     if x==apple_x and y==apple_y:
     if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,630)
-        apple_y=random.randint(0,450)
-    position.append((x, y))
+        a=random.randint(0,21)
+        b=random.randint(0,15)
+        apple_x=30*a
+        apple_y=30*b
+    else:
         position.pop(0)
         position.pop(0)
+    position.append((x, y))
+   
     # 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