save project

snake.py

@@ -21,6 +21,25 @@ while True:
             # 接收到退出事件后退出程序
             exit()
         if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHt and setheading!="left":
+                setheading="right"
+            if event.key==locals.K_LEFT and setheading!="right":
+                setheading="left"
+            if event.key==locals.K_UP and setheading!="down":
+                setheading="up"
+            if event.key==locals.K_DOWN and setheading!="up":
+                setheading="down"
+if setheading=="right":
+    x+=30
+if setheading=="left":
+    x-=30
+if setheading=="up":
+    y-=30
+if setheading=="down":
+    y+=30
+
+            
+
     x+=30
     position.append((x,y))
     position.pop(0)