save project

snake.py

@@ -24,11 +24,11 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     x += 30   #
-    if setheading =="right"
+    if setheading =="right":
         x +=30
-    elif setheading =="left"
+    elif setheading =="left":
         x -=30
-    elif setheading =="up"
+    elif setheading =="up":
         y -=30
     else:
         y +=30