save project

snake.py

@@ -17,22 +17,23 @@ x =240
 y =120
 w=[(180,90),(180,120),(210,120),(x,y)]
 setheading='right'
+shead=right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
         if event.type==locals.KEYDOWN:
-            if event.key==k_RIGHT&&setheading!='left':
+            if event.key==k_RIGHT and setheading!='left':
                 setheading='right'
                 shead=right
-            if event.key==k_LEFT&&setheading!='right':
+            if event.key==k_LEFT and setheading!='right':
                 setheading='left'
                 shead=left
-            if event.key==k_DOWN&&setheading!='up':
+            if event.key==k_DOWN and setheading!='up':
                 setheading='down'
                 shead=down           
-            if event.key==k_UP&&setheading!='down':
+            if event.key==k_UP and setheading!='down':
                 setheading='up'
                 shead=up
     if setheading=="right":
@@ -41,7 +42,7 @@ while True:
         x -=30
     if setheading=="down":
         y +=30
-    if setheading=="up"
+    if setheading=="up":
         y -=30
     w.append((x,y))
     w.pop(0)