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java-web项目加密运行（支持window/linux）

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JAVA项目加密(Windows/Linux/Mac/龙芯系统)

视频讲解-Java调用DLL

使用python将excel数据导入数据库过程详解

因为需要对数据处理，将excel数据导入到数据库，记录一下过程。使用到的库：xlrd和pymysql（如果需要写到excel可以使用xlwt）直接丢代码，使用python3，注释比较清楚。importxlrdimportpymysql#importimportlib#importlib.reload(sys)#出现呢reload错误使用defopen_excel():try:book=xlrd.open_workbook("XX.xlsx")#文件名，把文

系统 2019-09-27 17:47:02 2123

Python

Python的Django中django-userena组件的简单使用教程

利用twitter/bootstrap，项目的基础模板算是顺利搞定。接下来开始处理用户中心。用户中心主要包括用户登陆、注册以及头像等个人信息维护。此前，用户的注册管理我一直使用django-registration。只是这个APP有些不思进取，09年发布了0.8alpha版后就一直没什么动静。这次决定尝试另外一个用户模块组件django-userena。相比django-registration，django-userena的功能要完善的多。除基础的登陆注

系统 2019-09-27 17:46:12 2123

Python

史诗级干货-python爬虫之增加CSDN访问量

史诗级干货-python爬虫之增加CSDN访问量搜索微信公众号:‘AI-ming3526’或者’计算机视觉这件小事’获取更多算法、机器学习干货csdn：https://blog.csdn.net/baidu_31657889/github：https://github.com/aimi-cn/AILearners文章初衷：最近CSDN官方出了一个流量扶持计划，针对原创文章进行百度推广，我尝试推了几篇，效果也不是很好，或者是自己文章水平不够，太水~就想着增加

系统 2019-09-27 17:45:32 2123

Python

Python多进程入门、分布式进程数据共享实例详解

本文实例讲述了Python多进程入门、分布式进程数据共享。分享给大家供大家参考，具体如下：python多进程入门https://docs.python.org/3/library/multiprocessing.html1、先来个简单的#coding:utf-8frommultiprocessingimportProcess#定义函数defaddUser():print("addUser")if__name__=="__main__":p1=Process

系统 2019-09-27 17:45:24 2123

Python

Python中用Decorator来简化元编程的教程

少劳多得Decorator与Python之前引入的元编程抽象有着某些共同之处：即使没有这些技术，您也一样可以实现它们所提供的功能。正如MicheleSimionato和我在可爱的Python专栏的早期文章中指出的那样，即使在Python1.5中，也可以实现Python类的创建，而不需要使用“元类”挂钩。Decorator根本上的平庸与之非常类似。Decorator所实现的功能就是修改紧接Decorator之后定义的函数和方法。这总是可能的，但这种功能主要是

系统 2019-09-27 17:38:33 2123

Python

Python 中的with关键字使用详解

在Python2.5中，with关键字被加入。它将常用的try...except...finally...模式很方便的被复用。看一个最经典的例子：withopen('file.txt')asf:content=f.read()在这段代码中，无论with中的代码块在执行的过程中发生任何情况，文件最终都会被关闭。如果代码块在执行的过程中发生了一个异常，那么在这个异常被抛出前，程序会先将被打开的文件关闭。再看另外一个例子。在发起一个数据库事务请求的时候，经常会用

系统 2019-09-27 17:38:19 2123

Python

Python学习笔记整理3之输入输出、python eval函数

1.python中的变量：python中的变量声明不需要像C++、Java那样指定变量数据类型（int、float等），因为python会自动地根据赋给变量的值确定其类型。如radius=20，area=radius*radius*3.14159，python会自动的将radius看成“整型”，area看成“浮点型”。所以编程时不用再像之前那样小心翼翼的查看数据类型有没有出错，挺人性化的。2.input和print：先贴个小的程序#Prompttheuse

系统 2019-09-27 17:37:41 2123

编程技术

完整的简单层拖动代码

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