Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:
Kaspersky Security News website Threat Post published a wonderful report (see for details), which introduced the open parser, DNS amplification attack and its role in DDoS attack against Spamhaus:
去年乌龟案发后，他先也据理力争，但张家流放后，他便撂开手不提，且不含一点怨怼。
In fact, employees, experiences and students describe a role, for example, a person who is a "manager" must be an "employee". In the above design, a person cannot have multiple roles at the same time, and if he is an "employee", he can no longer be a "student". This is obviously unreasonable, because many on-the-job graduate students, even employees, are students.
挑釁的活動，擴大了美高梅電視台獨家節目的範圍 吸引全世界的觀眾。」
At the top is the card swiping area of Manaka, which can be swiped once at the station and once at the station. The balance and the cost of this use will be displayed on the screen.
Which chains can use the rules in the nat table: PREROUTING, OUTPUT, POSTROUTING (INPUT also in centos7, not in centos6)
More slowly
李修贤本片扮演贫民区出身的便衣刑警阿B，为人耿直，行事作风具争议性。他的搭档阿杰则是规距青年，富上进心。两人因为出身与个性不同，执勤时格格不入，但阿B办案的耐心负责态度让阿杰逐渐产生敬佩之感。黑仔是阿B童年好友，因贩毒杀人遭阿B通缉。阿B在追捕歹徒时误杀小童，心理受到莫大压力。阿杰给予友情开解，力促他一齐逮捕黑仔归案。不料阿杰竟在行动时被枪杀，令阿B对警察生涯不胜唏嘘。
CDMA is the English abbreviation of Code Division Multiple Access (CodeDivisionMultipleAccess). It is a brand-new and mature wireless communication technology developed on spread spectrum communication technology, a branch of digital technology. The principle of CDMA technology is based on spread spectrum technology, that is, the information data with a certain signal bandwidth to be transmitted is modulated by a high-speed pseudo-random code with a bandwidth much larger than the signal bandwidth, so that the bandwidth of the original data signal is expanded, then modulated by the carrier wave and sent out.
Let's take a look at how to write the first C source program:
What are the advantages and disadvantages of OvO and OvR?
林白笑了笑，说道：是这样。
他是一手掌控着整个sh市经济，政治命脉的穆家嫡长孙。 她是夏家刚找回失落多年的嫡出大小姐。 怀胎三月被毁容后丢下滔滔大江，这般万劫不复之地，究竟是谁救了她？晴空利用自己的聪慧，在穆家大少爷穆辰浩的帮助下，一步一步让那些伤害过她的人付出应该付出的代价
安小雪和马腾腾是一对80后小夫妻，两人从恋爱到领证，甚至是装修新房都自主决定，没有告诉家里人，这让身为婆婆的林默涵大为光火。林默涵是某大型超市的骨干，而且是小雪的上司，做起事来雷厉风行，说一不二。于是她为了避免闲话，辞退了小雪，并按照自己的意思改变了婚礼现场的布置，甚至找装修队重新装修了新房。小雪和林默涵的关系一路跌至谷底，而公
然后，周夫子命人拟了密折，随同这些东西，一起递往京城去了。
被嫉妒蒙昏了头的她，趁陆永年出外经商，借口韦一娴染上麻疯病，将一娴母女关进柴房。心腹钱管事下令火烧柴房，千钧一发时，何妈将明珠救出，却不幸在逃命时，跌落山谷，未见生还。陆永年回家后，伤心欲绝。而韦一娴在过度惊下，神智不清，开始她漫长的悲惨岁月。
