save project

snake.py

@@ -25,19 +25,27 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
-    elif event.type==locals.KEYDOWN:
-        if event.key==locals.K_RIGHT and setheading != "left":
-            setheading='right'
-            snake_head=right
-        if event.key==locals.K_LEFT and setheading != "right":
-            setheading='left'
-            snake_head=left
-        if event.key==locals.K_UP and setheading != "down":
-            setheading='up'
-            snake_head=up
-        if event.key==locals.K_DOWN and setheading != "up":
-            setheading='down'
-            snake_head=down
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading != "left":
+                setheading='right'
+                snake_head=right
+            if event.key==locals.K_LEFT and setheading != "right":
+                setheading='left'
+                snake_head=left
+            if event.key==locals.K_UP and setheading != "down":
+                setheading='up'
+                snake_head=up
+            if event.key==locals.K_DOWN and setheading != "up":
+                setheading='down'
+                snake_head=down
+    if setheading=="right":
+        x+=30
+    elif setheading=="left":
+        x-=30
+    elif setheading=="up":
+        y-=30
+    else:
+        y+=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去