want to learn c

Do you want to turn off the router when you go to bed at night? This is a problem. Do you want a router? Nowadays, many people have WiFi and have vrouters installed. They are still surfing the Internet in bed before going to bed, so many people don't care about vrouters at night, is there any need to shut down the router while we are sleeping at night? Will radiation affect our sleep? Let me tell you today

#import int main (int argc, const char * argv[]) {@autoreleasepool {Nsmutablestring *mustr1=[[nsmutablestring Alloc]init];Nsmutablestring *mustr2=[nsmutablestring stringwithformat:@ "Hello"];Nsmutablestring *mustr3=[[nsmutablestring Alloc]init];NSString *[email protected] "welcom to OC";nsmutablestring *[email protected] "welcom to OC"; This is wrong--you cannot assign a string constant directly to NsmutablestringAssign valueMustr1=[nsmutablestring STRINGWITHSTRING:STR];NSLog (@ "mustr1=%@", MUS

Database delay Delay Voting I made a voting project, do not want to every vote to visit the update database, want to update the database after a certain time, how should I do? Reply to discussion (solution) If the database is not updated immediately after the poll, does the result of the poll appear incorrect? Real-time functionality, no need to bulk INSERT. If the database is not updated immediately

Data loading can be involved in many projects. Data load can sometimes be 2-3 seconds, in order to give a friendly hint, generally will give a "data load ... "Prompt. Make a prompt box like this today.First go to the jquery website to see how to write the jquery plugin, and then began to write. Write down a plugin that is slightly optimized for use in the project. The following is the test diagram I wrote this plugin:This diagram simulates the presentation of the Cue box before the data is loade

git mistakenly commits a file that you do not want to commit, and the method you want to remove from the repository Example: Remove Lunch_history from the repository Git filter-branch–tree-filter "rm-f lunch_history" HEADWill output the following information:Rewrite 48A23742F0B5C35127DAA40A1303C2AF7976BAAC (29/29)Ref ' refs/heads/new_bianjb_7300 ' was rewrittenThis means: The new repository has been rewri

1. We open in the mobile phone Wang letter, and then we casually find a contact person (this is the test, if not the demo, you can choose the corresponding contact person) 2. In the Open With Friends Chat window we click "+" open access, details are as follows 3. Then we find "take a picture" or "Choose a photo" to use it to send a photo, as shown in the figure. 4. After the "photo" entry we can click on the photo button as shown in the picture If you

as Administrator". Copy the following command: FORFILES/P%WINDIR%SERVICINGPACKAGES/MMICROSOFT-WINDOWS-INTERNETEXPLORER-*9.*.MUM/C "cmd/ Cechouninstallingpackage@fnamestart/wpkgmgr/up: @fname/norestart " After copying, right click on the command Prompt window, select paste, Paste command, and press ENTER to run this command. Note: 0x80040005 error may occur during the run, we can click "OK" and ignore it. When the operation is complete, restart your computer, open IE browser, and see if IE9

" personally feel that the environment is very important, a good company environment and development environment can make you more effective, more and peer exchanges (in addition to colleagues, Daniel, as well as GitHub, know, StackOverflow and other platforms), do not work behind closed doors. Would you please not recommend the same books as the chicken Soup of the soul? People clapped their breasts and said, those books are really more conducive to the master to

C ++ experts learn advice and learn with an open mind ~~ [Reprinted], advice and learn modestly 1. Take C ++ as a new language learning (it has nothing to do with C! True .); 2. Read Thinking In C ++ instead of C ++. 3. read "The C ++ Programming Language" and "Inside The C ++ Object Model". Do not read them because they are difficult and we are beginners; 4. Do

Zhongguancun, IT elites are everywhere who are eager to distribute. they wear a mirror and clear their heads. The closed ports are network, security, information, hackers, code, and industry. there are three words behind the T-shirt: Don't bother me! However, in the end, only those who are willing to learn with peace of mind will survive in the IT world.Now the same is true for Chinese people who are studying Linux. All the people who are studying Li

me not to get my thanks, but more out of a sense of responsibility and expectation, so I thought, only to learn PHP well, to be able to withstand the sweat of our predecessors. As I said, I finally felt a sense of responsibility. I don't know how much my experience can help new users, but I understand that it is time to fulfill my responsibilities, it is necessary for me to tell my experience to all people who wa