Warning: file_put_contents(/home/www/wwwroot/zidian/69228.com/cache/9e3cdc169f70254bcdd7130c4c107da6.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/69228.com/index.php on line 55 国产片+人+综合+亚洲区,2021精品久久久久精品免费网,亚洲AV永久无码精品无码麻豆
When request change, developer or user uses these tools to redescribe the system to adapt changes. 當需求發(fā)生變化的時候，要使用這些工具調(diào)整系統(tǒng)的功能，以適應(yīng)變化。