Yes, SublimeText is available for free, but users are encouraged to purchase licenses. It offers an indefinite free trial, all features are available, but occasionally a window to remind you to purchase a license will pop up; you can use it individually or at will, but purchasing a license can support development and remove reminders; the license is permanently valid and applicable to all platforms, with a single user license fee of $90, supports multi-user and team authorization, and provides educational and bulk discounts; copy the license key to the software after purchase and activate without an account or online activation.

ToconfigurekeybindingsforbuildsystemsinSublimeText,opentheUserkeybindingsfileviaPreferences>KeyBindings,thenedittherightpanewithcustomJSONentries.EachentryisaJSONobjectspecifying"keys","command",andoptionally"args".Fo

SublimeText has many practical but easily overlooked features. 1. Multiple selection and quick editing: supports multi-cursor operation, splitting and selecting rows, batch modifying the same words to improve the efficiency of processing duplicate content; 2. Fuzzy search expansion function: can jump function definition, specify line number, and global search symbols to facilitate navigation of large projects; 3. Automatic saving and project recovery: no manual saving, it can automatically recover after crash, retaining the multi-task working state; 4. Custom shortcut keys and plug-in extensions: Install plug-ins and custom shortcut keys through the command panel to significantly improve personalized editing efficiency.

SublimeText's best package improves web development efficiency. 1. Emmet quickly generates HTML/CSS code, such as using the abbreviation div.container to automatically generate complete tags, and supports nested and duplicate elements; 2. SideBarEnhancements enhances file management, providing new templates, trash can move, right-click browser opening and other functions; 3. CSScomb automatically organizes the order of CSS attributes, improves readability and maintenance, and supports custom sorting rules; 4. GitGutter displays code change marks, which facilitates quick view of newly added, deleted or modified lines of code; 5. LSP and language plug-ins provide real-time code prompts such as intelligent completion, jump definition, error checking, etc.

To set up SublimeText for Python development, first install PackageControl, then install the plug-in, configure the build system, and enable automatic formatting. 1. Install PackageControl: Install through the console paste commands; 2. Install plug-ins: such as Anaconda, SublimeREPL, PythonFlake8Lint to enhance functions; 3. Configure the build system: Create a custom Python3.sublime-build file and select the corresponding interpreter path; 4. Enable automatic formatting: Use YAPF or Black combined with shortcut keys to achieve code beautification.

To use SublimeText more effectively, you can refer to the following resources: 1. Official documents and built-in help provide accurate information on core functions and configuration options; 2. YouTube channels such as TheNetNinja and TraversyMedia provide video tutorials; 3. Forums and community websites such as SublimeText forums and Reddit provide plug-ins and question answers; 4. Books and in-depth guides such as "MasteringSublimeText" are suitable for reading long articles; 5. Use PackageControl to install plug-ins such as Emmet and GitGutter to improve efficiency. By combining these resources with different learning methods, Sublim can be comprehensively improved

SublimeText's code snippet function can improve coding efficiency through preset templates. The specific steps are: 1. Create a new fragment through Tools>Developer>NewSnippet..., replace the placeholder in the template and save it to the default folder; 2. Use the trigger word and Tab key in the code to quickly insert common structures, such as inputting htmlbase to generate HTML5 basic framework; 3. You can add variables and placeholders to the fragment, such as setting ${1:functionName}, ${2:arguments} and other tags when defining JavaScript function templates to achieve fast customization; 4. User-defined fragments are stored in Packag by default

TosetupbuildsystemsinSublimeText,create.sublime-buildfileswithcustomcommandslinkedtospecificfiletypes.1.Definethecommandtoexecutecodeusingvariableslike"$file".2.Usethe"selector"fieldtoassociatethebuildsystemwithasyntaxsuchas"