Option is a good thing that most people really don't know how to use!
OverviewNullPoInterException, ChInese name:Null poInter exceptionNPE, also known as NPE, is one of the most common error anomalies In software systems.Long ago, the Google Guava project IntroducedOptionalNull poInter exceptionNullTo expect programmers to write code that is both neat and more readable...
Tech >>
I'm really happy online, but I don't want to buy it. The small screen phone is an example
There are many typical cases in the gaming industry where "I really enjoy online, but I don't buy it".A small screen phone is one of them...
Tech >>
The cheapest iPhone is really coming! Super large bangs screen and self-developed 5G signal for more stability
Author |YySource |Jiguo Editorial DepartmentIf you want to mention a unique model in the history of the iPhone, you must have a nomination for the iPhone SE.Although positioned only at the mid-range of Apple, it always touches the hearts of a group of "small screen flagship" enthusiasts, and every time a new model is introduced, everyone is eagerly discussing it...
Tech >>
Is Apple really more attractive than Android?
When most people see this problem, their first thought is that it is inevitable. Apple is really more attractive than Android, but the fact is not necessarily the case...
Tech >>
Really treating the common people like fools? Professor of Beihang Unveils 5G's "Shame Mask", Ren Zhengfei is quite right
Ocean and Sky. mp35:23From Xiao Pang Spicy ReviewOn May 25th, the South Korean Fair Trade Commission imposed a huge fine of 33...
Tech >>
WeChat has added this feature! Netizen: I really need it
Recently, on Weibo topics,#WeChat added locking function#Rush to the hot search and attract attention.It is understood that WeChat has previously pushed the official version 3...
Tech >>
Why can yellow and white people have children without reproductive isolation? Do humans really have species?
Today, I want to talk to you about a very interesting topic:Why can the white, black and yellow people on the earth combine with each other and have children without reproductive isolation?This question seems simple,The mysteries of human origin and evolution are actually involvedLet's explore together!Firstly, we need to understand what isReproductive isolationReproductive isolationUnable to produce offspring, or the offspring produced are sterileReproductive isolationThe answer isReproductive isolationThe early lifestyle of mixed livingHighly developed cultural mindThe first reason is the kinship and stable fertility traits of human originOnly about 200000 years agoHumans on EarthEthnic differences mainly stem from variations in representational expression, such as skin color, body shape, etcAnd the reproductive system remains highly similarThe second reason is thatThe early lifestyle of mixed livingReproductive isolationReproductive isolationThe third reason isHighly developed cultural mindDeeply influenced by the environment and social cultureHumans can also bridge these differences through psychological and cultural cognitionCross racial or cultural heterosexual relationships to gain unique attraction and satisfactionSports abilityThese differences are mainly caused by environmental adaptation, gene drift, gene recombination and natural selectionSkin colorSkin colorDHair and eye colorHair and eye colorSports abilitySports abilityThe appearance differences between humans only account for a small portion of the entire genome (approximately 0.01%)Reproductive isolationThis greatly enhances human genetic diversityIt can realize the flow and integration of cultural genes among peopleReproductive isolationWhich country's girls do you like best? Why?...
Tech >>
From being the first in the world to being completely cool, this phone is really hopeless
As is well known, no matter in which field, there are always people who excel and leave with a sense of disappointment~Taking the mobile phone industry as an example, the smartphone market has been sluggish in the past two years, which has led to major smartphone manufacturers having to struggle for survival, while some small factories have almost no foothold.During this period, Gree, a cross-border manufacturer of mobile phones, has been working hard in the mobile phone industry for many years, but due to unsatisfactory sales, it has recently had to disband its core team of mobile phones~Also, Japanese manufacturer Bamuda, which is also a cross-border mobile phone manufacturer, recently announced the end of its mobile phone business~The difficulty of 'crossing borders' is already quite high, and it is expected that they will ultimately fail...
Tech >>
Americans are really starting to fear AI
Exclusive to Radio and TelevisionThe following article is sourced from FounderPark and authored by FounderParkFounderPark.From Geek Park, focusing on discussing "real issues" with technology entrepreneurs...
Tech >>
Lost the bet? The outcome of the 5G dispute has been announced, American media: It's really sanctioning loneliness!
followprefaceGlobal 5G Standard Essential Patent ListPatent ownership of 5G technologyAs a standard for evaluation, the publication of this list is also considered the official outcome of the "5G debate" among countries in recent years.In this list, companies from ChinaHuaweiTop the list, and there are also 5 other companies from China on the list...
Tech >>
The door-to-door battle for express delivery has started. Are you really here this time?
In recent months, some friends have expressed that many courier guys have actually delivered goods to their doorstep!On a certain social platform, some netizens have also felt this change and expressed surprise.Is it true that "door-to-door delivery" has been rolled up due to fines and subsidies of 3 billion yuan for not coming to your doorstep?When it comes to "door-to-door delivery," many people immediately think ofSF ExpressandJD ExpressSF Express950350600SF Express5SF Expressgreen hand2021green handand2022green hand3green hand30green handgreen hand1+181green handsto 1170sto sto 650050/550Just take itPolar rabbitPolar rabbitPolar rabbit40%Polar rabbit15%5Polar rabbit1In recent years, it has been promoting its own post station/lifestyle supermarket, Tuxi, on a large scaleZhongtong80%Zhongtong80%A person located in TianjinYuantongIntroduction from several courier guys who have access to the rabbit,At present, the assessment requirements for door-to-door delivery vary depending on the region and city where the goods are located,Is there a door-to-door battle for delivery, as a last resort?23Outside of policies, some people believe that door-to-door delivery is only a marketing tactic for express delivery companies,At the end of 2021,Tiktok E-commerce 0...
Tech >>
Did you lose the bet? The outcome of the "5G controversy" has been announced, and American media: it's really sanctioning a "lonely" person
Wen | QingshanEditor | Whale HongBefore reading this article, we sincerely invite you to click on itFollowIt not only facilitates your discussion and sharing, but also brings you a different sense of participation. Thank you for your support...
Tech >>