Deep exploration of the meaning of C++ – extern “C”

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...

Django learning manual – Custom simple_tag / filter

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...

Django learning manual – template inheritance and import

Core: PS:A page can only inherit one template. Preposition:   Configure URL. Configuring views     Keyword:   1.  {% extends "indexTemplate.Html " %} Which template is inherited from which template to associate with which template page.  2.  {% block title %}<h1>User management page: < /h1>{% endblock %} The contents of the main page are written. Template pages need to be added to the location only.  3.  {% include "index-Import.Html " %} You can import directly on the main page.indexpage {#Which web page does the statement inherit?{%extends...

Java basis — Methods with parameters (two)

1. package demo2; public class Zhazhziji1 { public String zhazhi(String fruit){ String juice=fruit+” > watermelon >“); System.out.println(juice); } } 1. ><>) {                // >: public class StudentsBiz { String[ ] names = new String[30]; public void addName(String name) { // > . parameters2, traverse array in song style students[i]=name; break; } } }  // > public boolean find(int begin,int end,String name){ boolean rs=false; for (int i = begin; i < end; i++) { if (students[i].equals(name)) { rs=true;     break; } } return rs; } }     package demo...