save

问题 I have code which saves a String to a file. The problem is that the String is constantly changing (as they are sensor values) but the string is only saved once, then seems to delete the file once closed and open and new one to which it prints only one value. I need it to save each value to the same file, while auto-incrementing to avoid losing any data. Here is my code: UPDATED: I have updated this code to the working version. The code now saves the string to the file, then updates the file

问题 I am trying to produce a figure in MATLAB with a popupmenu that changes the axes of a subplot. This works so far. But when saving the figure using File > Save, my handles get deleted and it shows me the following error message: Error using struct2handle Error while evaluating uicontrol CreateFcn Error using handle.handle/set Invalid or deleted object. Error in popup_test/mimi (line 33) set(h1,'XData', [0,8],'YData',[0,8]) Error while evaluating uicontrol Callback It appeares, that when saving

问题 In my application the system will download images from an url and save it into phone memory. (I did not included url address in the question) On top of that, it will also save data into sqlite database. Data that save is file name, filepath and file size. But currently once I go through the download process whether the download complete or fail in the middle of the process, it also will insert into the database. Is there any way that I can check whether the download process is completed or

问题 I have a Swift application where I have an NSTableView populated by an array of custom structs, which contains an NSSound property. My question is, what is the best way to save the content of this array to a file, and how would I load the array from said file? 回答1: Save the content to a file with: NSKeyedArchiver.archiveRootObject(rootObject: AnyObject, toFile: String) Load the array with: NSKeyedUnarchiver.unarchiveObjectWithFile(path: String) 来源： https://stackoverflow.com/questions/31523726

问题 Sorry for my bad English. How can I save one of the images in my web Browser without redownload that image? Like ie 'Save picture as' option? The browser has 'save picture as' in context menu but I want to save image without using this option and want to save automatically. Thanks. 回答1: Source here Here IHTMLDocument2 doc = (IHTMLDocument2) webBrowser1.Document.DomDocument; IHTMLControlRange imgRange = (IHTMLControlRange) ((HTMLBody) doc.body).createControlRange(); foreach (IHTMLImgElement

问题 Is it possible in R to save a data frame (or data.table) into a textfile that contains different separators for various columns? For example: Column1[TAB]Column2[,]Column3 ? [] indicate the separators, here a TAB and comma. 回答1: The function write.table accepts only one separator. MASS::write.matrix can do the trick: require(MASS) m <- matrix(1:12, ncol = 3) write.matrix(m, file = "", sep = c("\\tab", ","), blocksize = 1) returns 1\tab5,9 2\tab 6,10 3\tab 7,11 4\tab 8,12 but as the

问题 In the old days for WinForms, if your user was creating/editing some information in a DialogBox, it was easy to detect the Window closing and if the data was dirty, ask if they wanted to save. My question is, how do you approach this scenario in Silverlight where everything seems to be done in UserControls, which have no obvious way of knowing when the page is closing, ie switching to another page within the Silverlight app would simply open a different UserControl without checking the

问题 Iam trying to save value '1' to the 'profile_created' field of my user table when the currently logged in user creates/adds a profile, my current implementation doesnt change this value, any suggestions? Thanks in advance. Current profile adding code: public function add() { if ($this->request->is('post')) { $this->Profile->create(); $this->request->data['Profile']['user_id'] = $this->Auth->user('id'); // code implemented below $this->loadModel('User'); $data = array( 'Profile' => array('user

问题 I'm having a problem while adding records in SQLite. This is the Error : 09-18 17:47:47.586: E/AndroidRuntime(1039): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.capstone.pinoygoodies/com.capstone.pinoygoodies.GroceryView}: android.database.sqlite.SQLiteException: near " ": syntax error: CREATE TABLE tblItem (_id INTEGER PRIMARY KEY AUTOINCREMENT, grocery_item TEXT NOT NULL, grocery_qty TEXT NOT NULL My CREATE TABLE db.execSQL("CREATE TABLE " + DATABASE_TABLE + "(" +

问题 Is there a way of saving the currently running script in Matlab? I have a script which automatically takes a backup of a set of scripts although if I have changed the current script then the saved version will be out of date. Perhaps its possible to call some java? Thanks 回答1: Somewhere on Yair Altman's site (see link in my other answer) he also referred to a blog entry about editorservices, which was introduced with MATLAB R2009b. editorservices.getActive().save should do what you want. 回答2: