高效网络io在linux上是epoll,在win上是iocp,设计思想上有很大不同,而boost是c++库要跨平台,就要统一两者。 统一无外乎有两种方法: 1、将其中一种包装成另一种. 2、引入第三种,将两种都包装成第三种. 我想正常人都会选方案1,方案1又有两种情况: a、基于iocp ... 一,升压型(boost)拓扑. 大家知道开关电源的基本拓扑有且只有三种:降压型(bcuk),升压型(boost),升降压型(buck-boost);从中文命名中我就可以知道降压型拓扑只负责降压,该特性上类似于线性电源变换器(ldo),但升压型拓扑,顾名思义,就是只负责电源升压变换的拓扑。 我最近也在学boost,说一点自己的建议和经历. boost内容比较多,除了之前有人说过的一些已经成为C++标准的东西以外还有很多其他的组件,像graph啊math啊GIL这样专业性很强的,也有一些很好用的小组件比如说时间日期,filesystem 这样的,可以根据自己需要有选择的学习 boost的很多功能是类似STL这种即时编译的头文件,部分功能是带库的。boost库是新C++标准的孵化器,但不得不承认真的是孵着孵着,C++新标准就渐渐成熟了,而没有纳入标准的功能,还有很多非boost的专用替代,这导致boost的地位有所下降。 Boost开关电源跟Buck开关电源一样,同样有两个工作模式:连续工作模式和不连续工作模式;如下图所示。 1. 不连续工作模式:如上左图所示,若Q1在下次导通之前,流过D1的电流已下降为0,则认为上次Q1导通时存储于L1的能量已释放完毕(磁芯复位),电源电路 ... to boost/promote interest 增加兴趣 to boost/promote career 促进职业发展. 唯独需要注意的是,“增强信心和士气”相关含义一般是用to boost而不是用to promote,这点需要注意,比如: to boost sb's confidence 增强某人的信心 to boost sb's morale 增强某人的士气 2014 年,我创建了 cpp11 分支,把绝大部分 boost 依赖换成了 std,只剩 boost::any 一时没有替换。C++11 版的 muduo 还是需要依赖 boost。 2017 年,我创建了 cpp17 分支,把剩下的 boost 依赖换成了 std,这样 C++17 版的 muduo 不再需要依赖 boost。 这个 boost 实在是很难翻译,这里给出两种教科书上出现过的: 有人译作“增速”,可以这样理解,你从(静止)惯性参考系 K 换到另一个相对 K 系有速度 v 的惯性参考系 K^{\prime} ,相当于说整个视角进行了一次提速。 知乎,中文互联网高质量的问答社区和创作者聚集的原创内容平台,于 2011 年 1 月正式上线,以「让人们更好的分享知识、经验和见解,找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容,聚集了中文互联网科技、商业、影视 ... 因此,Boost电路的占空比极限取决于电路器件。 实际应用中,boost电路的升压率取决于电路的工作状态。连续导通模式(CCM)下,boost电路的升压比M符合. M_{CCM}=\frac{1}{1-D} 这也是问题中占空比接近1,升压比无限高的传说起源。
2024.11.26 18:41 DeadPraxis B4b? Boost back immediately
Can anyone in the EarnIn Community help me boost my Max? 🙂 https://boost.earnin.link/zBaV
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2024.11.26 18:41 magicgoly JustFab Black Friday 2024 Coupon Codes
Use the link for JustFab Black Friday 2024 Coupon Codes. The website features a wide selection of coupons, promo codes, and discount deals that are updated regularly for you to choose from and make your purchase more affordable.
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2024.11.26 18:41 atashireality Planning 2024 - out of stater - what is the closest / most "convention" hotel?
Hi! Planning ANYC for the first time for next year, couple questions..
How early do hotels go up? Is there a preannounce of the hotel blocks?
Also, what is the closest / busiest hotel with the most conventiongoers? I don't want to walk a ton in cosplay, and I want to be "where the people are" so to say.
Thank you!
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2024.11.26 18:41 FirstNationVeteran Voc. Rehab missing (BAH) payments? Chap 31... How long, to get FKN’ 👉🏻💰❓
I've been in Voc. Rehab— since 2018 or 2019. I received my summer stipend BAH about 1.5 months in. This fall semester started on August 28th and ends in two days, just before Thanksgiving 🦃. However, I haven't seen any payments yet, and there's nothing pending on VA.gov. Is anyone else in a similar situation?
I checked all my certifying documents, and for this fall semester, it was officially certified by my school after my counselor approved it too. I'm really frustrated because I don't know where my money is. This situation is really disappointing.
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2024.11.26 18:41 dirtyharrison Mexican President Fires Warning at Trump Over Tariff Threat
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2024.11.26 18:41 Tobi9080 Quest gone
https://preview.redd.it/nh2hxsbdja3e1.png?width=1914&format=png&auto=webp&s=edf259d9e7a555b9db1aa1f1a0f568d171659072 Someone stole a whole quest D: I dont know what flair to put submitted by Tobi9080 to MonsterHunterWorld [link] [comments] |
2024.11.26 18:41 MusterYourWits I need to talk about this moment and Colin’s micro expressions.
I need to talk about this little moment and the incredible acting by Luke in this scene. The first three caps are his reaction right after Pen tells him “You do not realize how much that meant to me… what you said to my mother.” In the splittest of seconds, we see so many emotions flit across this man’s face. First (pic 1) = Slight confusion as he tries to ascertain what is wrong. Second (pic 2) = Realization as she explains Three (pic 3) = Concern as he recognizes the hurt in Pen’s voice. And it all happens in just a SECOND! But it doesn’t stop there. Next, Pen tells him that “No one has ever stood up for me like that.” Take a look at pic 4 - he looks almost horrified at this revelation. And almost disbelieving, like he can’t believe how poorly Pen has been treated. And pic 5? Hurt on her behalf but also a surety in his expression as he says “I will ALWAYS stand up for you.” The facial acting this man achieved!!! Any other favorite micro expression moments? submitted by MusterYourWits to PolinBridgerton [link] [comments] |
2024.11.26 18:41 Falchion99 Origin Forme Palkia, 1476 9999 7669, adding 10
1476 9999 7669
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2024.11.26 18:41 restinggrumpface New chiweenie dog mom here!
So I adopted my handsome sugarface senior now named Santo Bruno from Muttville this weekend and he's my first little ever. I'm reading all the literature so I can better know the breed. He's 8 and he's an absolute gentleman. Muttville gave him a full medical and he only had some bad teeth which they extracted. His breath could peel paint off a wall though, so I'd like to know how you all deal with this. Drops? Water additives? Greenies? Brushing? Also as the proud new guardian of a chiweenie what am I in for? I want the good and the bad. Personality, things to look out for health-wise, anything you can bring my attention to would be appreciated. :) thanks for reading. submitted by restinggrumpface to chiweenie [link] [comments] |
2024.11.26 18:41 RavNavi How do you keep up with your hygiene?
I've been struggling for the past few years with keeping up with my hygiene. I had a huge mental break in 2021 which is what started it. I used to shower every day, brush my teeth x3 daily, keep myself groomed, washed my face every day and did regular skin care, even ate healthier and kept the house sparkling clean.
Now I can barely shower twice a week. I just went 3 days. I don't brush my teeth often, to the point I just had to get two teeth removed recently. I barely wear makeup anymore. I shave my legs once every two months. I only do skincare twice a week so I have regular breakouts. I eat like shit and have gained 25 lbs. Every dish in the house is dirty, the toilet has shit caked in it, and there are dust bunnies everywhere.
I don't know where to start getting out of this rut.
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2024.11.26 18:41 Mission-Leg1445 ¿Que te hizo tu suegra para que la hayas llegado a odiar ?
M
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2024.11.26 18:41 ryzentzl Sticking to Squad Battles.
Have played since FIFA 20 (during quarantine times) and have played every game since. Suffice to say I rarely do get frustrated or angry at video games but this year, FC25 has been horrendously atrocious. Came back from college to enjoy a couple rounds of Rivals (Div 2) only to be met with kick off glitches, corners= penalties, bounces and of course, losing 4-1 while having 5.2 XG. I am officially done with the online aspects of the game, the delay, the lag (my 4080 can’t run this terribly optimised game). Rivals is horrible (and filled with the most down bad tryhard sweats). Champs is filled with a ton of questionable goals and griddys. The only thing I do is play rush and squad battles now. Thank you EA for ruining such a fun game.
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2024.11.26 18:41 Electronic_Rabbit_19 Look to my coming at first light on the fourth week. At dawn, look at the Twitch
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2024.11.26 18:41 Kunphen November 25, 2024 John Flannery
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2024.11.26 18:41 lightsols ESET Antivirus Black Friday 2024 Coupon Codes
Check out the link for ESET Antivirus Black Friday 2024 Coupon Codes. Once on the website, you'll have access to a variety of coupons, promo codes, and discount deals that are updated regularly to help you save on your purchase.
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2024.11.26 18:41 sensitiveshawty Studying the values of faces in different light settings.
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2024.11.26 18:41 dirtyharrison Alec Baldwin Trashes Americans While in Italy: They Are 'Uninformed' About Realities of Climate Change, Ukraine
submitted by dirtyharrison to NewsWhatever [link] [comments] |
2024.11.26 18:41 NoShow4Sho You guys think I still have a chance?
I didn’t realize which boss it was until I clicked it 🥲 there goes this run, and I was getting closer to finishing my build haha submitted by NoShow4Sho to balatro [link] [comments] |
2024.11.26 18:41 007-2000 IIH flareup/headache & migraine at the same time
As of 6 months ago my neuro-ophthalmologist told me my optic nerve swelling had improved immensely on the diamox (1000mg per day) and so I’m on a years supply, however since my last appointment my dosage got halved and I tolerated that ‘fine’ up until start of November, where I had all my symptoms return and their frequency. The flare up beginning start of Nov lasted a couple weeks and was ok again, fast forward to a couple days ago my period arrived (I’m on nexplanon so don’t normally get one) and so last night I suffered from the flare up from hell which I believe is hormonal triggered, and also what I’m certain was a migraine too because as anyone else who suffers knows there’s a difference. (Migraines I’ve also had my whole life and runs in the family so isn’t new for me)
Has anyone else experienced an IIH episode and the same time as a migraine? I honestly thought the end has come🫡😵💫horrific experience.
I have a follow up neuro-ophthalmology appointment on Thursday luckily but just looking for any similar experiences from anyone to see if this is ‘normal’ .
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2024.11.26 18:41 ziv_the_deadmen123 My OC (By dessertfordoctor)
Thanks him so much for this submitted by ziv_the_deadmen123 to HazbinHotel [link] [comments] |
2024.11.26 18:41 Hiraaa_ Stabbed myself with a syringe of cancer cell lysate
What should I do?
I was performing RNA extraction and had the cells in RLT lysis buffer, and I was homogenizing the sample with a syringe. When I was done and putting the syringe away I poked myself and my finger started bleeding. My lab mate said to encourage bleeding so I forced it to bleed a bit and ran my finger under water for a while.
Should I go to the doctor?
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2024.11.26 18:41 MathFar9748 OP is 19 now
Hehe
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2024.11.26 18:41 will_begone App graph is now completely broken.
The latest app version has so many problems I find it difficult to list all of them.
It looks like they have no QA that would prevent broken software from being released. I would be embarrassed to release something this broken.
Things that I can see::
2024.11.26 18:41 dirtyharrison Thanksgiving Turkey Prices Up 23% in Joe Biden's America
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2024.11.26 18:41 TheRangedReaper7 Valorant
Hey is there any way to see what guns are coming to the shop before they get there. Also I'm new so if you have any tips for Omwn, Cypher, or Clove I'd appreciate it if you could help me out.
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