Build openvpn server in Centos6.5
Because the new version of openvpn does not contain the most important certificate preparation part: easy-rsa, You need to download easyrsa in advance and download it on GitHub. The configuration process will be
anonymous functionsIf the function value is used once and the structure statement (which requires a single line of expression), an anonymous function can be used. Benefits of anonymous functions:
The program is used once, so there is no
Built-in functions and python built-in functions
'''Abs () dict () help () min () setattr () all () dir () hex () next () slice () any () divmod () id () object () sorted () ascii () enumerate () input () oct () staticmethod () bin () eval () int ()
Today, I saw someone in the group talking about openvpn. I just had a holiday at home, so I just studied it. I used the openvpn client when I was a little white two years ago when I was in the old unit and connected to the headquarters OA. I felt
Built-in functionsIn short, it is the function of Python3 itself.
ABS (x)
ABS () returns the absolute value of a number. If a complex number is given, the return value is the modulus of the complexPrint (ABS (-1100))Output: 1100
Built-in functionsIn short, it is the function of Python3 itself.
ABS (x)
ABS () returns the absolute value of a number. If a complex number is given, the return value is the modulus of the complexPrint (ABS (-1100))Output: 1100
The code is as follows
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#!/bin/sh# by Jet Ma from www.javatang.com# version v0.2 build20121011-1516# Install Nginx, MySQL and PHP# CentOS 5.5 64bit#-----------Configuration Information-----------# MySQL installation
1. abs (x)
The abs () function returns the absolute value of a number (common, long, or floating point. If a plural number is given, the return value is the modulo of the plural number. For example:
>>> Print abs (-2, 4)
2.4
>>> Print abs (4 + 2j)
One, function-type programming
Create a function
A function is composed of the keyword Def, with the function name and the parentheses colon, and the arguments in parentheses, when you want to execute the function, just write the function name and
Python command line Parsing Library argparse, pythonargparse
Python no longer extends the optparse module after 2.7. We recommend that you use the argparse module to parse the command line in the python standard library.1. example
There is an
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