The powerful PHP syntax is beyond the reach of ASP. Only one of them can be used to probe the configuration of the entire server. Running cmd and uploading files are very simple. Currently, the PHP Trojan is better than phpspy of angel. Yesterday, hak_ban asked me how to encrypt the PHP Trojan. I did not expect it, but it is still very difficult for me to write a micro-PHP Trojan.
Here we will briefly discuss several functions that can be used as Trojans:
1. Several functions that can run extern
expressions. We often use this feature to simplify code.
functionfoo(arg)
argarg=argor"default"
...
end
Using or to assign default values is the most common technique. In the preceding example, if arg is nil, arg is assigned "default ". However, this technique has a flaw. It may be a problem when the default value is true.
A = a ortrue -- incorrect syntax. When a explicitly writes false, it is also changed to true.A = ~ = False -- the correct method. When expression a is nil, it
Typical tutorial on advanced features of javascript Object-Oriented Programming (worthy of favorites) and javascript object-oriented
This article describes the advanced features of javascript object-oriented programming. We will share this with you for your reference. The details are as follows:
1. Three ways to create an object:
First constructor: new Object
var
; Theta_plus (i) =theta_plus (i) +epsilon; Theta_minu (i) =theta_minu (i)-epsilon; Numgrad (i) = (J (theta_plus)-j (Theta_minu))/(2*epsilon); endSTEP4: Visualization, Training train.m , the relevant gradient check related code is removed, because this part of the code is more time consuming. 2 : Vectorization Programming ImplementationThis only needs to be changed slightly in the above code. Step1: first set the parameter toVisiblesize = 28*
project is to output a project (if it is a application template, it is an. exe, the class library is a DLL), and a project can be referenced by any number of other projects.With the help of this modular unity, the problem domain can be divided more scientifically, the scope of the problem is restricted and the reuse is effectively formed.Finally, fromother people's appsTo guess the organization in Visual StudioTake 360 security guard as an example, 360 security guard obviously corresponds to a
This article mainly introduces the relevant information of the JavaScript Object-Oriented Programming Tutorial. If you need it, you can refer to the definition of objects in JavaScript as a set of unordered attributes, its Attributes can contain basic values, objects, or functions. You can think of an object as a hash, that is, a group of key: value pairs. The values can be data or functions. Each object is
/******************************************************************** @file main.cpp@date 2017-05-07@author Zor O_tiger@brief Problem 1005:c Language Programming Tutorial (third Edition) after class exercise 4.9http://www.dotcpp.com/oj/problem1005.html********************************************************************///! Header file#include //! Macro Definition#defineTEST#undefTEST//! Program EntryintMain
/******************************************************************** @file main.cpp@date 2017-5-9@author Zoro_ Tiger@brief Problem 1010:c Language Programming Tutorial (third Edition) after class exercise 5.8http://www.dotcpp.com/oj/problem1010.html********************************************************************/#include#include#defineTEST#undefTESTintMainintargcConst Char*argv[]) {#ifdef TEST freopen
/******************************************************************** @file main.cpp@date 2017-5-8@author Zoro_ Tiger@brief Problem 1008:c Language Programming Tutorial (third Edition) after class exercise 5.6http://www.dotcpp.com/oj/problem1008.html********************************************************************/#include#defineTEST#undefTEST//! Get grade levelCharGetgrade (intnumber_score);intMainintar
/******************************************************************** @file main.cpp@date 2017-5-18 09:28:39@aut Hor Zoro_tiger@brief Problem 1021:c Language Programming Tutorial (third Edition) after class exercise 6.11http://www.dotcpp.com/oj/problem1021.html********************************************************************/#include#include#defineTEST#undefTEST#defineSMALL 0.00001//! Ask for the square
/******************************************************************** @file main.cpp@date 2017-5-17 17:02:42@aut Hor Zoro_tiger@brief Problem 1020:c Language Programming Tutorial (third Edition) after class exercise 6.10http://www.dotcpp.com/oj/problem1020.html********************************************************************/#include#include#defineTEST#undefTESTintMainintargcConst Char*argv[]) {#ifdef TE
/******************************************************************** @file main.cpp@date 2017-05-12 23:18:28@au Thor Zoro_tiger@brief Problem 1019:c Language Programming Tutorial (third Edition) After class exercise 6.9http://www.dotcpp.com/oj/problem1019.html********************************************************************/#include#include#defineTEST#undefTESTintMainintargcConst Char*argv[]) {#ifdef TE
/******************************************************************** @file main.cpp@date 2017-05-12@author Zor O_tiger@brief Problem 1018:c Language Programming Tutorial (third Edition) After class exercise 6.8http://www.dotcpp.com/oj/problem1018.html********************************************************************/#include#defineTEST#undefTESTintMainintargcConst Char*argv[]) {#ifdef TEST freopen ("In.t
/******************************************************************** @file main.cpp@date 2017-5-10@author Zoro _tiger@brief Problem 1012:c Language Programming Tutorial (third Edition) after class exercise 6.2http://www.dotcpp.com/oj/problem1012.html********************************************************************/#include#includestring>#include#include#include#defineTEST#undefTESTintMainintargcConst Ch
/******************************************************************** @file main.cpp@date 2017-05-28 22:02:55@au Thor Zoro_tiger@brief Problem 1041:c Language Programming Tutorial (third Edition) after class exercise 9.8http://www.dotcpp.com/oj/problem1041.html********************************************************************/#include#include#defineTEST#undefTEST#defineMAX (A, B, c) Getmax (A, B, c)floatG
/******************************************************************** @file main.cpp@date 2017-05-28 22:10:10@au Thor Zoro_tiger@brief Problem 1042:c Language Programming Tutorial (third Edition) After class exercise 9.10http://www.dotcpp.com/oj/problem1042.html********************************************************************/#include#include#defineTEST#undefTESTintMainintargcConst Char*argv[]) {#ifdef T
/******************************************************************** @file main.cpp@date 2017-5-26 09:36:10@aut Hor Zoro_tiger@brief Problem 1031:c Language Programming Tutorial (third Edition) after class exercise 8.5http://www.dotcpp.com/oj/problem1031.html********************************************************************/#include#include#includestring>#include#defineTEST#undefTESTintMainintargcConst C
/******************************************************************** @file main.cpp@date 2017-5-25 09:45:52@aut Hor Zoro_tiger@brief Problem 1030:c Language Programming Tutorial (third Edition) after class exercise 8.4http://www.dotcpp.com/oj/problem1030.html********************************************************************/#include#include#defineTEST#undefTEST#defineArray_num 3intMainintargcConst Char*a
Starting from: Using Http.get () Simple network verification to prevent customers do not give the end of the computer computer programming introduction Tutorial self-studyhttp://jianma123.com/viewthread.aardio?threadid=428To the software and network verification is often needed to use the practical features, below a simple demonstration of how to use Http.get () Simple network verification, to prevent custo
Mhlib
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Nntplib
NNTP Client Module
Poplib
Pop client Module
Robotparser
Support for parsing Web server robot files
Simplexmlrpcserver
A simple XML-RPC server
Smtpd
SMTP server-side modules
Smtplib
SMTP Client Module
Telnetlib
Telnet Client Module
Urlparse
Support for interpreting URLs
Xmlrpclib
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