大约有 3,800 项符合查询结果(耗时:0.0128秒) [XML]

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社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...结合我们自身项目经验谈一下。 我们来看一下作为人是怎么获取网页数据的呢? 1、打开浏览器,输入网址url访问页面内容。 2、复制页面内容的标题、作者、内容。 3、存储到文本文件或者excel。 从技术角度来说整个过程...
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Difference between TCP and UDP?

What is the difference between TCP and UDP? 12 Answers 12 ...
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IOS 设备忘记root密码怎么找回 - 更多技术 - 清泛网 - 专注C/C++及内核技术

IOS 设备忘记root密码怎么找回上次我拿iPhone准备登陆终端进行操作的时候发现我的root密码被修改过,但是很久没有登陆过了。于是自己改成什么密码都忘记了。最开始准备重...上次我拿iPhone准备登陆终端进行操作的时候发现我的...
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UDP vs TCP, how much faster is it? [closed]

...exchange, which can tolerate some packet loss. How much more efficient is UDP over TCP? 15 Answers ...
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When is it appropriate to use UDP instead of TCP? [closed]

... guarantees packet delivery and thus can be considered "reliable", whereas UDP doesn't guarantee anything and packets can be lost. What would be the advantage of transmitting data using UDP in an application rather than over a TCP stream? In what kind of situations would UDP be the better choice, an...
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What is the largest Safe UDP Packet Size on the Internet

I've read a number of articles about UDP packet sizes but have been unable to come to a conclusion on whats correct. 11 Ans...
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...配它本身——连字符(或者减号,或者中横线,或者随你怎么称呼它)。 为了避免那么多烦人的重复,我们也可以这样写这个表达式:0\d{2}-\d{8}。 这里\d后面的{2}({8})的意思是前面\d必须连续重复匹配2次(8次)。 测试正则表达式 ...
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Does HTTP use UDP?

...o. Streaming is seldom used over HTTP itself, and HTTP is seldom run over UDP. See, however, RTP. For something as your example (in the comment), you're not showing a protocol for the resource. If that protocol were to be HTTP, then I wouldn't call the access "streaming"; even if it in some sense ...
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技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术

...激励了创业大军的壮大。大家都想创业,那我们技术人员怎么创业?也就个人的经验分享一下: 1、好的想法、产品构思。 2、好的合伙人。三板斧,管理、销售、技术。 3、构建强大执行力的团队。 产品及想法: 什么是...
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从 !important 到关于叹号的 !一切 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...置的格式像极了叹号作为逻辑非运算符的用法(为啥这句怎么怎么像病句),每次用这个 label 的时候,都会有种在说这封邮件其实并不重要的感觉。 这种困惑最终蔓延到写 CSS 的过程中!终于有一天我被这叹号折磨得无法忍...