edit

问题 You will understand what I mean if you use graphic editing programs like Gimp or Photoshop. To edit a curve on those programs (which probably is Bezier Curve), we can click on the curve, drag the mouse and the curve is changed accordingly. I suspect all the things behind this mechanism are concerned with vectors, but I couldn't find any document mentioning how to do it. Could anybody tell me how I can do that? Thank you very much. [edit] What I meant was to select-the-curve itself to change

问题 I need edit my text in second column and I don't want use MFC grid control. how I can edit cell by kicking on it. please give me simple example. There what I have: void CTab1::DoDataExchange(CDataExchange* pDX) { CDialogEx::DoDataExchange(pDX); DDX_Control(pDX, IDC_LIST1, m_LISTC); } BEGIN_MESSAGE_MAP(CTab1, CDialogEx) ON_NOTIFY(LVN_ENDLABELEDIT, IDC_LIST1, OnEndEdit) END_MESSAGE_MAP() // CTab1 message handlers BOOL CTab1::OnInitDialog() { CDialogEx::OnInitDialog(); m_LISTC.InsertColumn(0, L

问题 I´m using a script to export Products from a shop to one .csv file. Now I need to change the header row to make it work for me. I was searching a long time but didn't get it how to make it work. maybe I'm just to silly for that. Lets say my CSV looks like this: Heading1 Heading2 Heading3 value1 value2 value3 Now I need to open that csv file, change just the Headings, close and save it. 回答1: $f = "file.csv"; $new_heading = "World,Mama,Euro"; $new_heading.="\n"; // read into array $arr = file(

问题 I have created a simple_form_For common for both new and update, currently, it's working fine for new but for edit/update, it calling the wrong URL. class NewsfeedsController < ApplicationController before_action :find_post, only: [:show, :destroy, :edit, :update] def index @posts = Post.all.order("created_at DESC") end def show # before_action is taking care of all 4 i.e(sho,edit,update and destroy)..Keeping it DRY end def new @post = Post.new end def create @post = Post.new(post_params) if

问题 I want to know if it's possible to use gradient colors in the launchscreen.storyboards if so where can I edit it. I'm not looking to add images because it can make the app to heavy but maybe a transition to change the gradient from a-colors to b-colors. thanks in advance. 回答1: If you want to render gradients programmatically in a storyboard, you can generally define a UIView subclass to do that, but you cannot use custom classes in the launch screen. You’ll have to use an image. If your

问题 I need to add a custom action to the edit menu that pops up when a user selects some text in a UITextView in iOS. How do I do this? 回答1: class ViewController: UIViewController, UITextViewDelegate { @IBOutlet weak var textView: UITextView! override func viewDidLoad() { super.viewDidLoad() addCustomMenu() } func addCustomMenu() { let printToConsole = UIMenuItem(title: "Print To Console", action: #selector(printToConsole)) UIMenuController.shared().menuItems = [printToConsole] } func

问题 Is there a way in Windows to edit a binary file, from the command line? i.e. a way that could be written into a batch file? I want to be able to edit a single byte, at a known position, in an existing file. This existing question[1] is solved, but that's a Linux solution. I'm looking for something similar for Windows. Background There's a bug in GTA 1 when downloaded from Steam whereby the save-game data file gets corrupted on exit. As a result, the game can be played fine the first time but

问题 I want to know if it is possible to get back to the last line when I'm at the beginning of the next line? (in C# Console, of course) I mean Console.WriteLine() cause going to the next line and I want to stay in my line even after pressing enter. (And I think there isn't another way to ReadLine without going to the next line , is there?) I found that Console.SetCursorPosition() can be useful, like below: int x, y; Console.WriteLine("Please enter the point's coordinates in this form (x,y):");

问题 I want to know if it is possible to get back to the last line when I'm at the beginning of the next line? (in C# Console, of course) I mean Console.WriteLine() cause going to the next line and I want to stay in my line even after pressing enter. (And I think there isn't another way to ReadLine without going to the next line , is there?) I found that Console.SetCursorPosition() can be useful, like below: int x, y; Console.WriteLine("Please enter the point's coordinates in this form (x,y):");

来源： https://stackoverflow.com/questions/48412767/jq-how-do-i-replace-keys-and-values-based-on-regex-match