What is the programming language
Python and Chinese, English language, are a language, as long as the language is, in fact, can be seen as a thing of communication with the media is another thing. Python belong programming language, programming language program is communication between apes and computer media; Chinese and English is the medium of communication between people.
What is programming
Programming means: ape program based on the syntax of a programming language will want to let the computer do things in his own mind, written to a file. So the result is programming a bunch of files, this program is a bunch of files.
Why Programming
The computer is like a slave to the program aims to want to enslave computer, the computer as a human slave, let the computer help humans work and thus replace manpower.
hello world!!!(here get u hello world)
I use ---> python
print("hello world")other --->
java
#FileName: HelloWorld.java
public class HelloWorld #如果有 public 类的话，类名必须和文件同名，注意大小写
{
#Java 入口程序，程序从此入口
public static void main(String[] args)
{
#向控制台打印一条语句
System.out.println("Hello,World!");
}
} c
#include <stdio.h>
int main() #main 入口函数
{
printf("Hello,World!"); #printf 函数打印
return 1; #函数返回值
} c++
#include <iostream> //std::cout 要用到的头文件
#include <stdio.h> //标准输入输出头文件
int main()
{
printf("Hello,World!--Way 1\n"); //printf 语句打印
puts("Hello,World!--Way 2"); //puts 语句
puts("Hello," " " "World!--Way 3"); //字符串拼接
std::cout << "Hello,World!--Way 4" << std::endl; //C++ 教科书上写法
return 1; //作为注释
} C#
//FileName: HelloWorld.cs
using System;
class TestApp
{
public static void Main()
{
Console.WriteLine("Hello,World!");
Console.ReadKey();
}
} PHP
<!DOCTYPE html>
<body>
<?php
echo "Hello,World!"; //打印语句
echo "The first php program!"; //打印语句
echo phpinfo(); //phpinfo()系统函数,输出环境信息
?>
</body>
</html> JavaScript
var sys = require("sys");
sys.puts("Hello,World!");Ruby
print "Hello,World!\n" R
print("Hello,World!")SQL
SQL> select 'Hello,World!' from dual;
'HELLO,WORLD
------------
Hello,World! Perl
print "Hello,World!\n"; more and more edit, but i love the python best!