A file handle is generally either an opaque data type or an integer, it was introduced in around 1961 by the ALGOL-based Burroughs MCP running on the Burroughs B5000 but is now ubiquitous.
檔案把柄通常是不透明的資料型別或整數，它是在1961年左右由在Burroughs B5000執行，基於ALGOL的Burroughs MCP引入的，但現在已經普及了。