save project

snake.py

@@ -34,7 +34,7 @@ while True:
                 set_head = left            
             if event.key == locals.K_UP and setheading != 'down':
                 setheading == 'up'
-            set_head = right
+                set_head = up
             if event.key == locals.K_DOWN and setheading != 'up':
                 setheading == 'down'
                 set_head = down
@@ -42,10 +42,10 @@ while True:
         x += 30
     elif setheading == "left":
         x -= 30
-    if setheading == "up":
-        x -= 30
-    if setheading == "down":
-        x += 30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
         
     # 将背景图画上去
     screen.blit(background, (0, 0))