save project

snake.py

@@ -52,14 +52,34 @@ while True:
     else:
         y += 30
     position.append((x, y))
+    
+    if x == apple_x and y == apple_y
+        num1 = random.randint(1,22)
+        num2 = random.randint(1,26)
+        apple_x = num1 * 30 - 30
+        apple_y = num2 * 30 - 30
+    else:
+        position.pop(0)
+
+    screen.blit(background,(0, 0)
+    
+    screen.blit(snake_head,position[-1]
+
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])
+
+
+
+
+   )
+    
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
-    for i in range(len(position)-1):
-        screen.blit(body, position[i])
+   
 
     # 将果实画上去
     screen.blit(food, (360, 300))