harvard online study

Harvard's classic case study: Selling pigs in a rush (Strengthening the subprime mortgage crisis)This is the most easy-to-understand version of the subprime mortgage crisis.1We all know this case:A man sold pigs in a rush, and 20 pigs were not sold in the dark, so he went to a farmer's house to stay.The young woman said: it is inconvenient to have only one person at home.Male: Please give me a pig.Female: Okay, but there is only one bed at home.Male:

The lecture on the wall of the Harvard Library Study Room1. Nap now, you will dream, and now learn, you will dream.2. I am deserted today, is precisely yesterday perishes the person to pray tomorrow.3. Feel too late, exactly the earliest time.4. Do not drag the matter of today until tomorrow.5. The pain of learning is temporary, and the pains that have not been learned are lifelong.6. Learning this matter i

. NET Software Engineer Professional high-end network online training employment course (weekend class, online teaching, off-site study, Shanghai Employment)Course Lecturer: North Wind. NET full-time lecturers teamCourse Category: PackageSuitable for people: advancedNumber of lessons: 2000 HoursTechnology used: Mvc5,ef6,bootstrap,html5,jquerymobile,vs,.net,asp.ne

. Check the integrity of the backup file and verify whether the backup file is available. db2ckbkp -h /db2logs/PORTALDB.0.db2inst2.NODE0000.CATN0000.20130619001007.001 2. Run the db2ckrst command to return the recommended required recovery command. db2ckrst -d portaldb -r database -t 20130619001007 3. Execute the command sequence given by the previous command db2 restore db portaldb incremental from /backup taken at 20130619001007 buffer 100 The database will be restored to the backup time, and

usage Status1. View who is currently online, can execute the command: $ who2. View online commands for the network: $ netstat-a3, see the background execution of the program, you can execute the command: $ ps-aux (if fetch information: $ ps-aux | grep bash) The correct shutdown commandThe shutdown must have root privileges1, Shutdown: shutdownImmediate shutdown command: $ sudo shutdown-h nowRestart comman

Three:Click account → new account"Configure clients for a mailbox"* Foxmail: free of charge* Enter user name* Enter Password:* Modify the server's address localhost.* Outlook: Microsoft is charged.1.2.2 ActivationClick on the activation link in the email interface:Commit to the servlet to pass an activation code:To query the user according to the activation code:* If the user is queried: Modifies the user's state.* If no query to the user: Activation failed.1.2.3 LoginEnter your user name and p

(); Throw Newruntimeexception (); }1.2.3 Display of merchandise details PublicString FindByID (httpservletrequest req,httpservletresponse resp) {//Receive parameters:String pid= Req.getparameter ("pid"); //calling the business layer:Productservice Productservice=NewProductserviceimpl (); Try{Product Product=Productservice.findbyid (PID); Req.setattribute ("Product", product); } Catch(SQLException e) {e.printstacktrace (); Throw Newruntimeexception (); } //page Jump return"/jsp/pro

page."Add Item"* Click on the "Add" button on the Product List page.* Submit to Servlet: query all classifications.* page jumps to add page.* Enter information (including pictures) in the Add page* Click "OK"* Submit to Servlet: File upload, data inserted into database.File Upload:* Three elements:* The way to submit is post:* * enctype= "Multipart/form-data"* File Upload technology:* Servlet3.0* Jspsmartupload* FileUpload:* Commons-fileupload-1.2.1.jar* Commons-io-1.4.jar* STRUTS2* When using

Springboot uses a listener to collect statistics on the number of online users. Case study: springboot listeners In the springboot project, this article uses the HttpSessionListener listener (one of the listeners) to count the number of online users. In essence, it is used to count the number of sessions. The idea is very simple, but the details are not well hand

interaction is similar3. About the matching method, regular, XPath, CSS and so selector varies from person to person, the front-end often adjust the words do not recommend using CSS selector;regular expressions are much more efficient than XPath, but XPath can locate multiple (group) elements flexibly based on element logical hierarchy, attribute value conditions, and even XPath functions .In General, the students who do reptiles, regular and XPath should be the basic skills, especially in the

); One}Visible, the most important thing is partition this stepPivot point: (1) may not exist;(2) The pivot point itself must be in place. In position, the element on the left is no bigger than it, and the element on its right is no smaller than it.(3) in an ordered sequence, all elements are pivot points, and vice versaTherefore, a quick sort is the process of converting each element in an array to an axis point one by one(4) Convert any element to pivot point by proper exchangeAboveSorting alg

Case study of online update for Android I. Preparation for updating softwareTo update software online, we need a signed application. We need to put the software that has been signed into the server. My example is as follows:Apk is an updated version with a signature!The updateinfo.html code is as follows: {Version: 2.0, description: all new versions are available