ps4 indianapolis

)Class.forName (String): Loads the class and performs class initialization; the second parameter can be Class.forName (string, Boolean, ClassLoader) to simply load a class without initializing;Classloader.loadclass (String): Loads the class only, does not perform class initialization;PS2: Sometimes you see this usage:Class.forName ("Com.mysql.jdbc.Driver"). newinstance ();This is not necessary, as described above, static initialization has been new to a driver object, register to DriverManager,

indicates the fourth version of the installation BeautifulSoup>>> from BS4 import beautifulsoup # import BeautifulSoup>>> soup = BeautifulSoup (' (HTML) (/html) ', ' lxml ')Why is BS4, because others write the module when the definition of a package is called PS4, show off the module. can go to the official website to view the source code4.pyquery Analytic LibraryPIP3 Install Pyquery>>> from pyquery import Pyquery as PQ>>> doc = PQ (' (HTML) Hello (/

Tags: Shell current directory interpretation. BASHRC represents the scheme IMA slash TPSDrop one first:How to make your LD terminal more personal? First of all, we need to understand the following points of knowledge.A: Configuration filePersonal configuration file:~/.BASHRCGlobal settings file:/ETC/BASH.BASHRC (Modify requires Administrator privileges)BThe command prompt is controlled by a special shell variable, namely: PS1,PS2,PS3,PS4.We can only c

1. Install the required packagessudo apt install apt-transport-https ca-certificates Software-properties-common Curl2. Add GPG key, and add Docker-ce software source, here is the DOCKER-CE source of China University of Science and technology as an exampleCurl-fssl HTTPS://MIRRORS.USTC.EDU.CN/DOCKER-CE/LINUX/UBUNTU/GPG | sudo apt-key add-sudo add-apt-repository "Deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu \$ (LSB_RELEASE-CS) stable "3. update package cache after adding suc