1. Explanation
You have to ask me what items I have audited and find any loopholes. I remember the boss of the first company asked me, “can you read the code?” I don’t know how to answer it. To understand that I’m not sure what the definition of code auditing is; to understand that I understand ECSHOP and the company’s code framework,I don’t think there is any difference between understanding code and source code auditing. Now, to tell you the difference, I think code auditing is a subset of “code understanding” just as penetration testing is a ...
Reprinted in: https://blog.csdn.net/2000killer/article/details/51228625
Preface
With the development of the company’s business, background business has become more and more, but the server failure like menstruation, from time to time turbulent, let us be defensive. Then the high availability of the background and the processing capacity of the server need to do a lateral expansion of the scheme, so as to make the background business sustainable and stable usability.Calm the hearts of the people.
Because our back-end business is all. net applications, plus the unanimous recommendation of...
Indexes
Notes
strict mode
jstype
jstest
Debugging
Exceptions
finally
Anomalous branch
Excercise
Retry
The locked box
Notes
1、strict mode
strict modeAdvantages: more stringent checks and deletion of some problematic language features.
Put “use strict” at the top of the file (it must be at the top of the file and be treated as a string elsewhere) or open JS string mode at the top of the function.
Example 1: if strict mode is not enabled, JS will add a let to you silently.
function canYouSpotTheProblem() {
"use strict";
for (counter = 0; counter < 10; counter+...
1. Strcpy and strncpy functions of strings
1、Programming to achieve strcpy function (written test is easy to test)
Request:
Prototype: char *stpcpy (char *strDest, char *strSrc);
Header file: #include < string.h>
Function: copy the string that SRC refers to by NULL to the array referred to by dest.
Note: Memory areas referred to by Src and dest cannot overlap and dest must have enough space to accommodate the SRC string.
Returns a pointer to the character (NULL) at the end of dest.
...
CMutual reference to C++ functionsOriginal address: http://blog.csdn.net/wfwd/archive/2006/05/30/763734.aspx=========================================================================================1.Introduction
C++The original intention of the language is “a better C”, but this does not mean that C++ like global variables and functions in C language use the same compilation and connection method as C language. As a language compatible with C, C++ preserves some of the characteristics of procedural languages.People call it “incompletely object-oriented”, so it ca...
031601232；I’m a smiling Zhu Zhihao; my hobby is communication; I recommend the second floor of clove boiled meat slices; my god, school is about to start.
https://www.luogu.org/problemnew/show/P3381
With negative edges, it will not work with normal dIjkstra.
Relevant:
DjangoTemplate engines provide general function functions, and most of the code logic functions can be implemented through the front-end, but only support most common function functions, such as if judgment, ifequal comparison return value and so on. Complex function functions do not support, such as judging a return through a template.Is the return value a legitimate numeric type, and you can customize some of the front-end functions if you don’t want them to be implemented in the background view code?
DjangoThere are two ways.
simple_tag
filter
The...
