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date: 2025-10-22 
time: 16:37:25
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- **Syntax:** 
    You reference variables using the `${variableName}` syntax within the prompt file.
    
- **Types of Variables:**
    - **Workspace Variables:**
        - `${workspaceFolder}`: The absolute path to the root of the current workspace.
        - `${workspaceFolderBasename}`: The name of the workspace folder.
    - **Selection Variables:**
        - `${selection}`: The currently selected text in the active editor.
        - `${selectedText}`: Another way to refer to the currently selected text.
    - **File Context Variables:**
        - `${file}`: The absolute path to the currently active file.
        - `${fileBasename}`: The name of the active file, including its extension.
        - `${fileDirname}`: The directory name of the active file.
        - `${fileBasenameNoExtension}`: The name of the active file without its extension.
    - **Input Variables:**
        - `${input:variableName}`: Prompts the user to enter a value for the specified `variableName` when the prompt is run.
        - `${input:variableName:placeholder}`: Similar to the above, but includes a placeholder text within the input field.

# 參考來源
- [variable in copilot prompt file](https://www.google.com/search?q=variable+in+copilot+prompt+file&rlz=1C1GCEA_enTW1166TW1166&oq=variable+in+copilot+prompt+file&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIHCAEQIRigATIHCAIQIRigAdIBCTEwNDY2ajBqNKgCALACAQ&sourceid=chrome&ie=UTF-8)