macos

问题 I installed Jupyter notebook using pip3 on OSX. Later, I realised, I should do it through anaconda because it has loads of libraries which I need for my on-line study. So I was about trying to uninstall jupyter, then install anaconda. I see many questions when people messed up uninstall jupyter notebook. So I want to do it correct way. I wanted to do this way $ pip install pip-autoremove $ pip-autoremove jupyter -y or may be using pip3 instead, anyway, does anyone know if it is the right way

问题 I installed Jupyter notebook using pip3 on OSX. Later, I realised, I should do it through anaconda because it has loads of libraries which I need for my on-line study. So I was about trying to uninstall jupyter, then install anaconda. I see many questions when people messed up uninstall jupyter notebook. So I want to do it correct way. I wanted to do this way $ pip install pip-autoremove $ pip-autoremove jupyter -y or may be using pip3 instead, anyway, does anyone know if it is the right way

问题 I am wanting to change the text background color on a tableview's cell when it is hovered upon, similar to how AddressBook "highlights" the label of a contact's element when you mouseover the label names. However I cannot figure out how to accomplish... detecting a mouseover on a particular NSCell and... After detecting the cell his hovered upon, highlighting the text in that cell (not highlighting the entire row as if the user selected that row) As NSCell is not a subclass of NSView this

问题 I am wanting to change the text background color on a tableview's cell when it is hovered upon, similar to how AddressBook "highlights" the label of a contact's element when you mouseover the label names. However I cannot figure out how to accomplish... detecting a mouseover on a particular NSCell and... After detecting the cell his hovered upon, highlighting the text in that cell (not highlighting the entire row as if the user selected that row) As NSCell is not a subclass of NSView this

问题 I am wanting to change the text background color on a tableview's cell when it is hovered upon, similar to how AddressBook "highlights" the label of a contact's element when you mouseover the label names. However I cannot figure out how to accomplish... detecting a mouseover on a particular NSCell and... After detecting the cell his hovered upon, highlighting the text in that cell (not highlighting the entire row as if the user selected that row) As NSCell is not a subclass of NSView this

问题 I am using Quartz Event Services to send key commands to applications, but it appears that it was designed to only sent to the front-most window for each application. In Windows, you can send a key event to a specific window using the SendKeys API. I know that you can target specific windows using AppleScripts and send key commands without bringing that window to the foreground for that application, but wondering if there is a way to do this programmatically in C/Objective-C. Seems like the

问题 I am using Quartz Event Services to send key commands to applications, but it appears that it was designed to only sent to the front-most window for each application. In Windows, you can send a key event to a specific window using the SendKeys API. I know that you can target specific windows using AppleScripts and send key commands without bringing that window to the foreground for that application, but wondering if there is a way to do this programmatically in C/Objective-C. Seems like the

问题 I am using Quartz Event Services to send key commands to applications, but it appears that it was designed to only sent to the front-most window for each application. In Windows, you can send a key event to a specific window using the SendKeys API. I know that you can target specific windows using AppleScripts and send key commands without bringing that window to the foreground for that application, but wondering if there is a way to do this programmatically in C/Objective-C. Seems like the

问题 I am using Quartz Event Services to send key commands to applications, but it appears that it was designed to only sent to the front-most window for each application. In Windows, you can send a key event to a specific window using the SendKeys API. I know that you can target specific windows using AppleScripts and send key commands without bringing that window to the foreground for that application, but wondering if there is a way to do this programmatically in C/Objective-C. Seems like the

问题 I'm using a Macbook with the latest macOS (10.12.3), and I installed Homebrew by running: /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" After that I installed node: brew install node And tried to upgrade it: > brew upgrade node > Error: node 7.8.0 already installed I got an error saying the version 7.8.0 is already installed, that was expected since I had just installed the most recent version. Problem: on the terminal I ran: > node -