save project

snake.py

@@ -24,7 +24,30 @@ 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()
-    x+=30
+        if event.type == locals.KEYDOWN:    
+            if event.type == locals.K_RIGHT and setheading != "left":
+                setheading = 'right'
+                snake_head = right
+            if event.type == locals.K_LEFT and setheading != "right":
+                setheading = 'left'
+                snake_head =left
+            if event.type == locals.K_UP and setheading != "down":
+                setheading = 'up'
+                snake_head = up
+                     
+            if event.type == locals.K_DOWN and setheading != "up":
+                setheading = 'down'
+                snake_head = down
+                     
+                              
+    if setheading == "right":
+        x+= 30
+    elif setheading == "ieft":
+        x-= 30
+    elif setheading == "up":
+        y-= 30
+    else:
+        y+=30 
     positioon.append((x,y))
     positioon.append((x,y))
     positioon.pop(0)
     positioon.pop(0)
     # 将背景图画上去
     # 将背景图画上去