文件系统间复制文件
示例
if (FALSE) {
# Copy an S3 bucket's files to a local directory:
copy_files("s3://your-bucket-name", "local-directory")
# Using a FileSystem object
copy_files(s3_bucket("your-bucket-name"), "local-directory")
# Or go the other way, from local to S3
copy_files("local-directory", s3_bucket("your-bucket-name"))
}