Then look at the source code of activity's dispatchTouchEvent (), getWindow (). SuperDispatchTouchEvent (ev). This method is the method of Window abstract class class. Everyone knows that the implementation class of Window is PhoneWindow, so directly look at the superDispatchTouchEvent () method of PhoneWindow:SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.本剧讲述了从上流家庭逃出来的奇怪少女徐春和优等生韩仁尚因未婚先孕，使得平凡人家的女孩嫁入豪门后引发出的的一系列矛盾与混乱的故事。其实所谓的经理也不过就是个项目经理，官很小，但却很受员工爱戴。《魂断太平》是张汉英导演的36集电视剧。本剧浓墨重彩展示农民起义波澜壮阔的历史，尽显农民起义英雄本色，更据史实切入时弊，把曾国藩的复杂品性和“拼命做人”、“拼命做事”、“拼命做官”的处世之道发挥到极致，剧中跌宕起伏的历史事件，战马嘶鸣的场景让你慨叹这部历史的悲悯和沧桑，神来之笔刻画出曾国藩功名成就崛起时，却辞众将之约，拒黄袍裁湘军以刚毅为固执，终婉言归退隐，作为清王朝的守护人，逆历史潮流而动，最终沦为王权倾轧拼杀的殉葬品。The students. They may have been able to enter the threshold of university with the help of the state and society, but they do not have the money to buy computers, participate in more education and training, etc., and Qifang Network provides this loan method with negotiable interest, which broadens the channels for loans. Qi Fang's risk control has the following three characteristics: decentralized loans, strict examination and risk sharing. Decentralized loans are the common characteristics of these models. Strict examination means that students need to pass five related certifications before releasing help-seeking information: website ID card authentication, mobile phone authentication, bank account authentication, e-mail authentication and student ID card authentication. After passing five certifications, the student's identity can be determined. Risk sharing is mainly due to the fact that Qi Fang's borrowing targets come from universities that cooperate with Qi Fang, such as Chengdu College of Sichuan University and Ningxia Normal University. Schools and Qi Fang share risks. In this way, we can not only better find the right loan recipients and provide the real and effective evaluation of the loan recipients, but also make it easy for students to find loans through Qi Fang, and also avoid the risks of lenders. When the loan is established, the money will not be directly transferred to the student's bank account, but will be transferred to the account of the school where the student is located, and then the school will send the money to the borrowing student, thus ensuring the real use of the loan. Qi Fang's profits come from three sources: first, the service fee, which is about 2%. The second is online advertising revenue. The third is the commission of training tuition income. This is a more distinctive point. Through cooperation with training institutions or enterprises, Qi Fang not only provides assistance to college students who cannot afford training expenses or enterprise training, but also shares it from the tuition income of training institutions. Qi Fang
