save

问题 does anyone know how to save an uint8 workspace variable to a txt file? I tried using MATLAB save command: save zipped.txt zipped -ascii However, the command window displayed warning error: Warning: Attempt to write an unsupported data type to an ASCII file. Variable 'zipped' not written to file. 回答1: In order to write it, simply cast your values to double before writing it. A=uint8([1 2 3]) toWrite=double(A) save('test.txt','toWrite','-ASCII') The reason uint8 can't be written is hidden in

问题 I have a little problem, when I have text put in a UITextfield in view controller A and I go to an other view controller and then i go back to view controller A the text in the textfield had disappear. Is there a way to save the text temporary in the textfield? So the text won't disappear when you go to an other view controller. 回答1: when you navigate the page at that time save the data in NSUserDefaults . NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults]; [defaults setObject

问题 18.11.2009 10:32:00 I want the value in between the above tag(created) to be inserted into the sqlite db for which i have taken a column of type timestamp.... how can i store this value in that column?? please advise... 回答1: You should replace dots by hyphens and place months, days and year parts in correct order. According to sqlite docs these are the date and time accepted formats: YYYY-MM-DD YYYY-MM-DD HH:MM YYYY-MM-DD HH:MM:SS YYYY-MM-DD HH:MM:SS.SSS YYYY-MM-DDTHH:MM YYYY-MM-DDTHH:MM:SS

问题 This question already has an answer here : Closed 7 years ago . Possible Duplicate: Download canvas image on the fly I have a canvas of HTML5 which is fully working. Now, I want to create a sort game, where people can save their image and share it with others. This can be done (I guess) by saving the image as a different url then the place where the canvas is. Right now, if I "save" my HTML5 canvas, I get this URL in the browser: data:image/png;base64

问题 Merged with android download image and then read it from sd-card using sqlite. hi to all i have this problem with my code and i tried every thing that i know of and i posted it on some forums and didnt get an answer im new to android and im still learning ..... my question is that i have a code that is suppose to receive a variable that contains a website that has an image so this variable changes every time i send a new link this code should go online and download the image and save it to

问题 hey, now i can save data in my db, but it doesn't show up in the database activity itself. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); onCreateDBAndDBTabled(); //DB und Tables erstellen wenn noch nicht vorhanden setContentView(R.layout.main); } private void onCreateDBAndDBTabled() { myDB = this.openOrCreateDatabase(MY_DB_NAME, Context.MODE_PRIVATE, null); myDB.execSQL("CREATE TABLE IF NOT EXISTS " + MY_DB_TABLE + " ( id integer primary key

问题 I have seen many examples with one view controller for adding or updating core data items. Any thoughts on pros or cons of doing in separate view controllers? My code for trying to do the update I think I am missing one key part to get it to work. @IBAction func saveItem(sender: AnyObject) { let appDel: AppDelegate = UIApplication.sharedApplication().delegate as AppDelegate let context: NSManagedObjectContext = appDel.managedObjectContext! let en = NSEntityDescription.entityForName("Items",

问题 Im working on my first app for the apple app store and I am in need of the code to be able to see a picture and save it to the photos, also where the code goes, so some what of a tutorial of how to save a picture to the photos app, I am working with the latest version of the iphone SDK. 回答1: UIImageWriteToSavedPhotosAlbum(image, self, (SEL)@selector(image:didFinishSavingWithError:contextInfo:), nil); Here's an example. 回答2: Referring "iPhone cookbook" by Erica Sadun 来源： https://stackoverflow

问题 I have the following code: -(IBAction)downloadButton:(id)sender{ NSURL *url=[NSURL URLWithString:@"http://93.185.34.100/prob/pic1.zip"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request setDownloadProgressDelegate:progressView]; // NSString *pathString=[NSString stringWithFormat:@"%@/theZip.zip", [[NSBundle mainBundle] resourcePath]]; NSString *filePath = [[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"theZip"] stringByAppendingPathExtension:@

问题 In IE9+, the point labels seem to only occupy the 4th quadrant of the chart (as if the entire chart was scaled down) when using jqplotToImageStr. The chart displays normally otherwise (within the page when divs are used for the labels I believe) 回答1: Fixed it by adding the css rule: .jqplot-point-label { text-align: left; } this is because the toimage function has a handler for center aligned text (which is the default), which is causing things to be positioned incorrectly. The culprit: if ($