2. The policy pattern provides an open-closed principle, making the code easier to understand and expand.
不患寡而患不均，大家都不淘，也就平衡了。
The instructions used in Dockerfile were introduced in the previous article, and now we will begin to practice the instructions.
# echo 1/proc/sys/net/ipv4/tcp_syncookies
一行人旋风般地从街市上驰过，往小青山脚下奔去。
Huang Weiping used to be the boss of the chemical raw materials industry. At the age of 36, he encountered a bottleneck in his life and had unprecedented confusion. "Living is meaningless. (At that time) there was no need to worry about money. It was found that it would be the same in another 35 to 10 years."
但是，自从《武侠世界》出刊后，这一切都变了，《武侠世界》后来居上，一举超过了《侠客》。
接着，监狱长却给郑树森安排了为庞德送饭的差事，两年的相处，郑树森竟然和庞德成了朋友。面临死刑的庞德要求郑树森做执行枪决的刽子手。痛苦的郑树森在闭着眼睛亲手“枪毙”了庞德之后，辞
故事讲述江户川柯南在洗澡时遭遇传闻中的杀手组织，却在滑倒后失忆，并被神秘人物带走的故事。将于2014年12月播出。
[A doctor in Guangzhou issued a document pointing out that "Hongmao Medicated Liquor is a poison from heaven" was arrested across provinces on suspicion of damaging the reputation of commodities]
Wait, is this kind of drama familiar?
Anyway, the smell is very bad. I feel that the worst smell I have ever smelled in my life is it, but it is all a small meaning. It took me a few minutes to feel sick and uncomfortable. The Vietnamese army's attack started again. From this onwards, it can also be said to be the most difficult period in the defense war of the whole 142 position. "Zhao Mingkai said.
近期，一部名为《Churails》的巴基斯坦网剧经历了被禁播，又在观众的愤怒下，重新上线的过程。这部10集的连续剧讲述了4个不同背景的女人，因为父权制的不公而走到一起，成立了一个秘密侦探机构“Churails”（女巫）的故事。
There is not much requirement, just an average promotion.
所以，他回到小屋子里，一边看着网上关于《白发魔女传》的言论，一边就开始找房。
"On Improving Squat Speed in Snatch"
After the anatomy, we saw that the smoke bomb was divided into four parts. From left to right: filter cotton in cigarette holder part, PLA cigarette oil filter like plastic, hollow filter cotton connecting tobacco shreds and tobacco shreds.
7. Os.path.isfile ()--Determines whether the specified object is a file. Yes returns True, otherwise False
