save project

snake.py

@@ -56,11 +56,15 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    if x == apple_y and y == apple_y:
-        apple_x = random.randint(0,660)
-        apple_y = random.randint(0,480)
-
-    position.pop(0)
+    print("x="+str(x),"y="+str(y))
+    print("apple_x="+str(apple_y),"apple_y="+str(apple_y))
+    if x == apple_x and y == apple_y:
+        num1 = random.randint(0,22)
+        num2 = random.randint(0,16)
+        apple_x = 30*num1-30
+        apple_y = 30*num2-30
+    else:
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去