When Python is programmed, it often deals with files and directories, which cannot be separated from OS modules. The OS module contains common operating system functions, independent of the specific platform. The following is a list of commonly used commands
只怕京城从此不安生了。
与此同时，胡钧也叱喝道：二婶休要胡说。
The video mentioned that the longer the working hours, the easier it is for couples to divorce.
程浩（吴镇宇 饰）、姚家成（温兆伦 饰）和杨志彪（陶大宇 饰）是生活在同一个村庄的不良少年，三人整日厮混在一起，日子过得浑浑噩噩但也充满了快乐。终于，胡作非为惯了的三人捅了篓子，程浩自愿出头，为姚家成和杨志彪顶罪，最终进入了少年感化院。
从来都是郑氏管教孩子，他护在头里，对几个闺女更是溺爱，对小葱这样说话那真是头一回了。
二更求粉。
婚前婚后、男人女人之间的两性关系和相处方式，是这几年最受欢迎的话题！而当最呛辣的大老婆狄莺，遇上最俗辣的好老公屈中恒，究竟他们会有什么火花产生呢？节目中除了邀请艺人，更会邀请专家，来分享他们看到婚姻中最常出现的状况是什么？！透过节目分享，将教大老婆们如何让老公更爱你，教老公们如何更懂老婆的心！婚姻中的男女想维持关系良好的夫妻关系，就不能不看大老婆俱乐部；未走进婚姻中的热恋男女，不想婚姻变成爱情坟墓，就更要看大老婆俱乐部！
Observer mode: pay attention to encapsulating object notification, support the change of communication object, realize the change of object state, notify and update the objects that depend on it.
怎会是这个样子？不对，不对，不应该是这样子。
II. Test Surface
7 Respiratory system
Amplification attack is a special kind of reflection attack, Its special feature is that the reflector has an amplifying effect on network traffic, so we can also use this reflector as an amplifier, and the way of amplifying attack is basically the same as that of reflecting attack, except that the network service provided by the reflector (amplifier) needs to meet certain conditions.
小葱守在刘蝉儿身边，心里始终不安。
如果现在有人对他说。
As for myself, it was brushed by the Beggars' Sect together with the hidden sword after graduation from Chi Ming this season. It was a little brain pain without long-range brushing, but it also passed.
……碧瑶之悲，让人悲铭五内，狂歌痛饮才能消解，陆雪琪之悲就是淡淡的，淡淡的忧伤，连绵不绝地刻在眉间心底，无从消解。
