save project

snake.py

@@ -30,24 +30,24 @@ while True:
             exit()
         elif event.type==locals.KEYDOWN:
             if event.key==locals.K_RIGHT and setheading != "left":
-                setheading="right"
+                setheading='right'
                 snake_head=right
             if event.key==locals.K_LEFT and setheading != "right":
-                setheading="left"
+                setheading='left'
                 snake_head=left
             if event.key==locals.K_UP and setheading != "down":
-                setheading="up"
+                setheading='up'
                 snake_head=up
             if event.key==locals.K_DOWN and setheading != "up":
-                setheading="down"
+                setheading='down'
                 snake_head=down
 
     #设置贪吃蛇的坐标
-    if setheading=='right':
+    if setheading=="right":
         x+=30
-    if setheading=='left':
+    if setheading=="left":
         x-=30
-    if setheading=='up':
+    if setheading=="up":
         y-=30
     else:
         y+=30