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parameters passed in must be bytes ByteArray typeByteArray are mutable, bytes and Str are immutable and are mainly used for image processingCompared to bytes, insert,append,extend,pop,remove,clear,reverse and other operations are supported, and index operations are enabled>>> S1 = "Life is short, I learn python! ">>> S1' Life is short, I learn python! ‘>>> B1 = ByteArray (S1.encode ())>>> B1.decode ()' Life is short, I learn python! ‘>>> B1ByteArray (b ' \XE4\XBA\XBA\XE7\X94\X9F\XE8\X8B\XA6\XE7

fact, it is a time not to please. In today's world, the requirements of programming languages are simple syntax, code readable, and performance is back to the second, so the birth of Python, Ruby and other programming languages. A lot of people criticize the Java syntax is very bloated, I admit it, but the fact is, programming language has never been because of the syntax bloated and eliminated, the decision of its life and death is the ecological system. for critics, quote the word: " dynamic

Before SECURECRT has been not connected to Linux (my Linux version is Ubuntu14.04.2, with the VirtualBox), on the Internet to find a variety of methods, but can not solve my problem!The solution on the Internet is not to say that there is no SSH service, which means the firewall is not shutting down.I didn't show up on the above question, but where is the problem?Identify the problem:I think the problem should be here: in Terminal input ifconfigDo you show 1, or 2? If the display is 1 then take

Q: What is the biggest feature of the Windows 7 super taskbar? A: In Vista, the Default Start menu Shutdown button is replaced by sleep, which makes many people not accustomed to, and modify the use of this way unexpectedly need to pass the Control Panel power function option. In Windows7, this maddening way of operation has disappeared. All we need to do is set the power button action to shutdown in the Start menu option of the taskbar and Start Men

Windows 10041 still does not show Microsoft's new browser "Spartan", which is disappointing, but on the one hand, Microsoft has made it clear that the Windows 10 official version will Spartan as the default browser, And in most versions of the total removal of IE11, highlighting its maturity and Microsoft's self-confidence, on the other hand, now the preview version of the test version of the Spartan, you can open their own experience. At first glance, Spartan and the current popular browsers

Holiday has become the shield of Trojan virus wantonly crime, a large number of Trojan virus playing the guise of holiday, a lot of computer users inadvertently stepped into the trap of the virus design, but also often suffered economic losses. December 21, Jinshan poison tyrants and other anti-virus manufacturers have issued Christmas virus warning, and this year's Christmas, MSN album, Ladybug Virus and so seems to come earlier, the harm is not to be underestimated. Jinshan Poison Bully Anti-

(SelectMAXfromorderbydesc; Meaning: First check out the tallest height, exclude the height, then sort the data (descending) and query out the current first piece of data. 2, the query may be the same as the highest height value of the second place, that is, if the height is 182 Several people are also 182 height, The second place is still Select Top 1 * from (selecttop2fromorderbydescOrder byASC; Meaning: The data is sorted by height (descending), the first two items are queried,

+ +, to read the section on object assignment, and you will basically not find an introduction to "shared pointers, smart pointers."While C + + developers want to understand them, the horse casino generally looks for resources that come from "Class C" rather than modern C + +.How do you prevent the impact of C + + 's past?There is no particularly effective solution here. We can expect the C + + compiler to emit some warnings about the latest updates, like string operations in the past (strcpy,

Peter Den, ICANN's board chairman, said that this was the biggest technological change since the internet was invented 40 ago, and that in order to create a system that translates multilingual scripts into the correct address, they have been tested for several years and are bound to push for the successful implementation of this great change. In accordance with the decision of this meeting, there will be a number of languages that can be used as Web

the right talent. Chongqing Talent Network Income from the initial 20,000 yuan, developed to today's 200,000 yuan, the main sales revenue from membership fees and online advertising. "Preconceived is the key to our success, in so many years, there are many competitors to imitate us, but did not succeed, do the Internet temptation too much, the most important thing is to focus." "Zheng Hanlin said. "My success lies in my focus." Reporter: I think a lot of people will be interested, why Chongqing

McDonald's has spent three years turning to profitability, but investors want more. January 30, McDonald's released Q4 earnings, although the United States and store sales reached the expected, but the share price hit the biggest decline in 4 months. Mike Halen, Bloomberg analyst, Maik Halen that McDonald's valuations are far higher than its rivals, and investors believe that McDonald's same-store sales should be far more than expected rather than fla

). These data types support Push/pop, Add/remove, and intersection-set and difference sets and richer operations. 4 The biggest difference between Redis and memcache Replication (tree-shaped) Data types (String, Lists, Sorted Sets, hashes) persistence (snapshot, aof) Many developers think that Redis can not be faster than memcached, memcached is completely based on memory, and Redis has persistent preservation features, even if asynchronous, Redis can

users, the demand for online entertainment is also getting bigger. With the increase in demand, entertainment site prospects are very good, will inevitably become a hot investment, attracting businesses to continue to increase investment in entertainment sites, for the rapid increase of netizens to provide more services, Internet entertainment can also be further developed. 　　Copyright is still the biggest puzzle for entertainment websites The netw

Some time ago in a migration of data pump and exp, found that the difference in efficiency is quite large. Here is an example of a simple comparison. This article discusses the most important factors that affect the performance of data pump imports. Several articles have been written to introduce the performance of Exp/imp and EXPDP/IMPDP, respectively, according to the description of the previous articles, if not using parallelism, it seems that IMPDP efficiency than IMP does not have an orde

Denial of interference to solve the biggest problem with Wi-Fi802.11 technology has grown dramatically over the last 10 years – faster, more powerful, and more scalable. But one problem still haunts Wi-Fi;There is nothing more than users complaining about Wi-Fi performance is not stable, coverage is not good, often drop the network manager to crash. Addressing Wi-Fi, an invisible and changing environment, is really a problem. and radio frequency inter

Ruby programming language is developed by the Japanese pine line, is a simple and fast object-oriented programming language, today mainly talk about the ruby framework--ruby on Rails (http://www.maiziedu.com/course/ruby/), Maybe some friends don't like Ruby, but as a language, I think Ruby is well worth mastering and learning.Let's talk about what it's good to learn Ruby.The biggest advantage of Ruby on Rails is that I think there are four of them:1.

The biggest business opportunity for mobile Internet, everyone must know. There is no doubt that in China, the mobile internet will be the biggest trend in the future, if you want to be on this platform, easy to start a business, quickly make money.You may be a person, you may be a team, you may have a company, but anyway, we want to make money easily, the most important thing is to borrow power. On the mob

0 reply content: from another perspective: One of the hot topics in the industry today is that Facebook founder and CEO Mark Zuckerberg admitted in an interview that "focusing on HTML 5 is the biggest mistake he has ever made .」 Then, the leaked data is that the user browsed the Feed information stream twice as much as before. What are the main reasons why Facebook initially used HTML 5? For a single development, cross-platform release is definitely

This article reprinted to: Http://www.ciotimes.com/net/rdjs/WI-FI/201006301920.htmlRF interference in English: RFI, (Radio Frequency interference)Japanese: Electronic wave barrier DamageSummary: Keywords: Wi-Fi radio frequency interference channel802.11 technology has grown dramatically over the last 10 years – faster, more powerful, and more scalable. But one problem still haunts Wi-Fi;There is nothing more than users complaining about Wi-Fi performance is not stable, coverage is not good, ofte

Yesterday in the circle of friends saw a video, named "Write Your biggest regret" http://v.hinews.cn/page-862247.htmlPassers-by still have a lot of know their regrets, but I thought for a while, also did not think out. Not without regrets, there are many regrets, do not know which is the biggest.It's a pity that there are so many. Because we are constantly choosing, choosing means getting a, and losing B. We will be sorry for not choosing B, but I oft