save project

snake.py

@@ -5,6 +5,7 @@ import random
 pygame.init()
 x,y=240,120
 # 创建一个窗口
+s="right"
 screen = pygame.display.set_mode((660, 480))
 t=pygame.time.Clock()
 # 背景
@@ -18,8 +19,23 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-    
-    x+=30
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and s !='left' :
+                s='right'
+            if event.key==locals.K_LEFT and s !='right' :
+                s='left'
+            if event.key==locals.K_UP and s !='down' :
+                s='up'
+            if event.key==locals.K_DOWN and s !='up' :
+                s='down'
+    if s=='right':
+        x+=30
+    elif s=='left':
+        x-=30
+    elif s=='down':
+        y+=30
+    else :
+        y-=30
     p.append((x,y))
     p.pop(0)
     t.tick(3)