new RealFSProvider(rootPath)

• rootPath <string> 要用作根目录的绝对文件系统路径。必须是非空字符串。

const vfs = require('node:vfs');

const realVfs = vfs.create(new vfs.RealFSProvider('/tmp/vfs-root'));
realVfs.writeFileSync('/file.txt', 'hello'); // writes /tmp/vfs-root/file.txt 拷贝