save

问题 I create a program that place random image in grid layout format. The size of the grid layout is 6 x 6 = 36. Only 10 were filled with images (each image was different) and the rest were empty. alt text http://freeimagehosting.net/uploads/bfb7e85f63.jpg How can I save it to a file and read it again, so it will display the same images with same placement on the grid? Here is the code that I used to save the images: //image file String []arrPic = {"pic1.jpg","pic2.jpg","pic3.jpg","pic4.jpg",

问题 I am writing an App, in which I would like to append a text file, as various user actions happen. I would like the text file to be located in internal memory. I would like the text file to also be visible under Windows Explorer, if the user connects the tablet with a usb cable. I have looked at many examples, and have been able to write a text file to internal memory, but I can not seem to make the file visible in File Manager. Does anyone know if it is possible to write a text file to

问题 def __init__(self): self.bok = {'peter': 123, 'maria': 321, 'harry': 888} def save(self): file = open('test.txt', 'w') file.write(str(self.bok)) file.close() print "File was successfully saved." def load(self): try: file = open('test.txt', 'r') newdict = eval(file.read()) self.bok = newdict file.close() print "File was successfully loaded." except IOError: print "No file was found." return How do i make it look like this inside the text file: value1:key1 value2:key2 ==> 123:peter 321:maria

问题 Im using highcharts to display some results, but i need to save the chart as an jpg image into the project folder to email it. There is a way to save the image without involve the "download" of the browser, just save it to a destinated folder. Thanks. 回答1: If you create your own export server like what is described here (I use the Java + phantomJS setup). You can then send via the command line the json to build the chart and the output type (jpeg, pdf, etc) and then you can redirect this

问题 Inside a Simulink Scope , it is possible to select Print to Figure . This will open a figure with the same content as the original scope. Is there a way to perform this action programmatically? See also this help page, this help page and this page. 回答1: Depends a little on how fancy you want/need to get. If you really want to use exactly the same code as the UI callback then you'll need to investigate how to use the callback functions in the following directory/package: MATLABROOT\toolbox

问题 I have the following VBA code saving workbook1 sheets to a folder where workbook1 file is saved. Example: workbook1 has 31 sheets. The code saves each sheet to a new workbook with the same name as the sheet. (Sheet1, Sheet2, etc). Sub SaveShtsAsBook() Dim Sheet As Worksheet, SheetName$, MyFilePath$, N& MyFilePath$ = ActiveWorkbook.Path & "\" & _ Left(ThisWorkbook.Name, Len(ThisWorkbook.Name) - 4) With Application .ScreenUpdating = False .DisplayAlerts = False ' End With On Error Resume Next '

问题 I have in my code two methods to save images data, one to just save it values in greyscale and another one to generate a heat map image: def save_image(self, name): """ Save an image data in PNG format :param name: the name of the file """ graphic = Image.new("RGB", (self.width, self.height)) putpixel = graphic.putpixel for x in range(self.width): for y in range(self.height): color = self.data[x][y] color = int(Utils.translate_range(color, self.range_min, self.range_max, 0, 255)) putpixel((x,

问题 I am working on an App for collecting Customer Details like personal, business, assets etc. The app shows a ListView with options and based on options Activities are started. After entering details in personal user presses back button and returns to MainActivity ( Activity with a ListView ) and selects another option like business details and assets detail. User enters the details and come back to MainActivity by Back button and selects another option. I tried to save my Activity s using

问题 I have a simple form and body field. when user upload an attachment I want to remove any attachment already in the body field of the document. how can I do this in my save button. I have tried to set the properites on the fileUpload control to always change the filename to tha same name but this does not replace the file, instead it adds a new file and add a new sequential number to it <xp:fileUpload id="fileUpload1" value="#{userdoc.Body}" filename="profile" seUploadname="false"></xp

问题 I have an NSDocument that contains a dataOfType method, but it is not called when I do a save. - (NSData *)dataOfType:(NSString *)typeName error:(NSError *__autoreleasing *)outError { NSLog(@"db: %@", db); return [NSKeyedArchiver archivedDataWithRootObject:db]; } Why is this not called? Specifically, are there any reasons why my current document should not be the first responder that the menu-item "Save" points to? 回答1: Did you leave 'Use Core Data' checkbox unchecked on create new project