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生成数据./dbgen -vf -s 100处理数据,去除tbl表中⾏后⾯的分隔符“|”sed -i 's/|$//g' supplier.tbl sed -i 's/|$//g' customer.tbl sed -i 's/|$//g' orders.tbl sed -i 's/|$//g' lineitem.tbl sed -i 's/|$//g' supplier.tbl sed -i '
m88体育官方原创 3小时前
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Java虚拟机创建了C1和C2编译器线程,用以优化应用m88体育的性能。但是有时这些线程会消耗大量CPU资源。在这篇文章中,我们将深入探讨C1和C2编译器线程,以及如何解决它们可能导致的高CPU消耗问题。 Hotspot JIT HotSpot JIT(Just-In-Time)编译器是Java虚拟机(JVM)中的即时编译器,它负责将Java字节码转换为本地机器m88官方。HotSpot是Oracle JDK
m88体育官方原创 4小时前
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(『渗透测试基础』| 什么是渗透测试?有哪些常用方法?如何开展?测试工具有哪些?优势在哪里?) 本文理论基础知识来源于《测试工程师全栈体育进阶与实践》,仅供学习使用,不做他用。感谢原作者提供的知识分享。 本文整理梳理了来源于书籍、网络等方面渗透测试理论内容,旨在了解和学习渗透测试的基础,并不做实际的演示,仅用于学习目的。 1 什么是渗透测试? 渗透测试是指由专业的安全人员模拟黑客,从官方可能
m88体育官方原创 4小时前
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  Web 应用的基础概念  在讨论 Web 应用安全之前,先简单介绍一下 Web 应用基础概念,这样便于理解为什么 Web 应用是脆弱的,容易受到gong ji。  1、 什么是 Web 应用  Web 应用是由动态脚本、编译过的m88官方等组合而成。它通常架设在 Web 服务器上,用户在 Web 浏览器上发送请求,这些请求使用 HTTP 协议,经过因特网和企业的 Web 应用交互,由 Web 应用和
m88体育官方原创 4小时前
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常见的方法1.re.findAll()   返回的是列表2.re.search()  返回的是match对象,需要通过.group()获取 值,而且它是查到一个符合条件的就结束。3.re.finditer()  返回的是迭代器,需要通过循环获取,并且也是要用.group()去获取预加载:提前把表达式写好,后续直接调用regx = re.compile(r"正
m88体育官方原创 1天前
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测试网站:http://tool.oschina.net/regex元字符:\d   能够匹配一个数字(0-9)\w  能够匹配数字、字母、下划线(0-9,a-z,A-Z,_)\D  \W  对应的反义词例如\D,匹配除数字之外的[abc]  匹配中括号里的字符[^abc]  匹配除了abc以外的字符.  除了换行符
m88体育官方原创 1天前
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蜘蛛的爬行需要满足以下几个条件:1. 爬行协议合法所有的网站都使用HTTP协议作为互联网上信息传输的标准协议。在HTTP协议中,有一个重要的概念叫做“请求/响应模型”。简单来说,就是用户在浏览器中输入网址后,浏览器向服务器发送一个请求,服务器处理请求后返回一个响应。这个请求和响应都是通过HTTP协议进行传输的。如何联系蚂蚁seo?baidu搜索:如何联系蚂蚁SEO?baidu搜索:如何联系蚂蚁SE
m88体育官方原创 1天前
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(『测试基础』| 如何理解测试用例管理和缺陷管理?) 1 测试用例定义 测试用例(TestCase)为测试对象编制一种测试输入、执行条件和预期结果; 用例可以体现测试方案、方法、体育和策略; 用例的内容一般包含: # 测试对象名称 # 测试项 # 测试目标 # 测试环境 # 测试输入 # 测试步骤 # 预期结果 # 测试脚本等 平常我们最简化的测试用例至少应该包含测试输入和预期结果。 2
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docker拉取镜像docker pull selenium/hub docker pull selenium/node-chrome docker pull selenium/node-firefox docker pull selenium/node-edge运行Selenium Hub首先创建网络docker network create grid运行hub,docker run -d
m88体育官方原创 2天前
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介绍Chiplet前,先说下SOC。Chiplet和SOC是两个相互对立的概念,刚好可以用来互为参照。
m88体育官方原创 2天前
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ATE是Automatic Test Equipment的缩写,翻译过来也就是自动化测试设备。在所有电子元器件的生产制造流程里面,都存在去伪存真的需要。为了实现去伪存真的过程,就需要各种测试设备,ATE就是这样的设备。
m88体育官方原创 2天前
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大家应该都知道做芯片是一件非常烧钱的事情。经常看到新闻通稿,某某公司融资了xx亿,外行乍看之下觉得好多钱啊,但实际上可能只够该公司烧一年。那么做芯片到底有多烧钱?钱都花在哪哪些地方了?这篇文章杰哥将从芯片设计公司的角度切入,详细讲解芯片研发与生产的成本结构。
m88体育官方原创 2天前
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作现代社会的一员,互联网已经成为我们生活的一部分。当我们遇到问题时,总是会通过搜索引擎寻找答案。然而,随着互联网的发展,搜索引擎的优化也变得越来越困难。在这种情况下,蜘蛛池应运而生,为网站优化提供了新的解决方案。如何联系蚂蚁seo?baidu搜索:如何联系蚂蚁SEO?baidu搜索:如何联系蚂蚁SEO?baidu搜索:如何联系蚂蚁SEO?蜘蛛池是一种利用搜索引擎爬虫进行优化的体育。通过将网站内容发
m88体育官方原创 2天前
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1、 需求分析跟同事之间探讨客户需求对需求文档进行测试  互相交换想法2、需求评审如何评审首先提前一天发邮件给格个参会人员,准备参与XXX项目需求评审参与人员:产品经理,项目经理,研发负责人,研发小组成员,测试负责人,测试小组成员然后开始会议,主要分析产品需求的合理性,會員註冊考虑这个需求可不可以实现,测试考虑能不能给用户带来更好的使用体验。3、根据需求编写测试计划确定需求分析说明
m88体育官方原创 2天前
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(『Fiddler数据抓包功攻略』| 如何使用Fiddler进行数据抓包与分析?) 1 关于Fiddler Fiddler是一个HTTP/HTTPS调试抓包工具; 针对我们测试人员来说,数据抓包是一个基本技能,尤其像接口测试,这就用的很频繁了; 我们除了进行数据抓包,平常用的最多还有实现伪造数据请求,或者伪造服务器的响应,做一些性能或者弱网测试等等。 2 Fiddler安装 Fiddler
m88体育官方原创 精选 2天前
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AREX 除了可以为测试人员提供回归测试的便利,还可以助力會員註冊人员在新功能會員註冊后进行本地自测,快速发现m88官方问题并立即修复,有效缩短會員註冊周期,提高會員註冊效率。
m88体育官方原创 精选 2天前
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yyds干货盘点
两个表rapids> select * from Employee; +-------+--------+------------+--------+ | empId | name | supervisor | salary | +-------+--------+------------+--------+ | 1 | John | 3 | 1000
SQL
m88体育官方原创 3天前
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防火墙设置教程
在上一篇文章中(Python制作排班小工具【一】),已经编写了小工具的排班逻辑,本篇文章将使用ttkbootstrap实现小工具的GUI界面。
m88体育官方原创 精选 3天前
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产品工程师负责的工作范围相对于其他研发岗位更加宽广,包括推动项目进度、特性化分析、可靠性测试、SLT测试以及量产良率监控五个方面。下面杰哥会给大家做一一解读。
m88体育官方原创 3天前
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目前芯片就业市场上ATE测试工程师非常紧缺,基本上大部分的芯片设计公司都存在这方面的人才缺口。根据杰哥从猎头处了解到的信息,3年左右的TE最为紧缺,薪水也普遍超过50万。这是什么原因呢?
m88体育官方原创 3天前
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前两天我们一个做封装的同事问我说,目前ATE测试工程师在就业市场上很火,很多公司都在急招,猎头也让他帮忙有偿推荐候选人。ATE测试工程师为什么会这么紧缺呢?杰哥将在这篇文章中给大家做出详细解答。
m88体育官方原创 3天前
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第三方芯片检测机构同时包含可靠性测试和失效分析两大业务。本文杰哥想给大家讲讲第三方芯片检测机构的那些事儿。
m88体育官方原创 3天前
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这是IC男奋斗史的第19篇m88体育官方原创本文3810字,预计阅读10分钟。之前在《凤姐如何变冰冰?》这篇文章中杰哥有介绍过CP测试,也提到了CP测试需要用到探针卡。那么探针卡到底是什么?探针卡在芯片测试领域的应用现状如何?全球有哪些主要的探针卡制造厂商?国内的探针卡企业发展如何?杰哥将在这篇文章中为大家一一解答。探针卡是什么?从应用角度看,探针卡是连接ATE测试机台与半导体晶圆之间的接口,是实现CP测试的必
m88体育官方原创 3天前
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本系列文章对经典的测试用例设计方法逐个进行剖析,并深入到日常工作的实际需求中,结合具体场景进行实战演练,并分别对各类方法的适用场景进行归纳梳理,形成可复用官方模板,帮助大家快速熟悉常用测试用例设计方法,提升测试人员专业度及工作效率,从而提升交付质量。
本文主要介绍芯片后道封测流程。
m88体育官方原创 3天前
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产品电气连续性测量:频率1~5k之间可调,运动速度、采集周期可调;接触电阻(电流法)测量:测量电流可设置(最小分辨率1mA);噪声电阻测量:阻值范围:100Ω~500kΩ,采样频率2.5khz;接触电阻变化-C.R.V测量:测量电流:1.0mA;输出平滑性测量:阻值范围 :100Ω~50kΩ;总阻测量:可测阻值范围:100Ω~50kΩ;滑动噪声:采用动噪声A方法测量;产品游隙测量:采用线位移测量法
m88体育官方原创 3天前
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$lower\_bound$和$upper\_bound$
c++
m88体育官方原创 3天前
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Sublime Text 是一个轻量、简洁、高效、跨平台的编辑器Sublime Text具有良好的扩展功能,官方称之为安装包 (Package)。右边没有滚动条,取而代之的是m88官方缩略图,这个功能非常赞强大的快捷命令 “可以实时搜索到相应的命令、选项、snippet 和 syntex, 按下回车就可以直接执行,减少了查找的麻烦。”即时的文件切换。随心所欲的跳转到任意文件的任意位置。多重选择 (Mul
m88体育官方原创 3天前
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随着科技信息的发展,软件产品质量成为企业和用户共同关注话题,因此有效保障软件产品质量的测试手段必不可少。一般为了获取更客观权威的检测报告,企业会将测试工作交由m88体育软件外包公司进行,也就是专门从事软件测评服务的第三方检测机构。
m88体育官方原创 3天前
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