save project

snake.py

@@ -54,9 +54,12 @@ while True:
         y += 30
     position.append((x, y))
     if x==x_apple and y==y_apple:
-        x_apple=random.randint(0,660)
-        y_apple=random.randint(0,480)
-    position.pop(0)
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        x_apple=num1*30-30
+        y_apple=num2*30-30
+    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