pub fn create_batched_writer(schema: &polars::prelude::Schema) -> BatchedWriter<File> {
let mut file = std::fs::File::create("output/test.parquet").unwrap();
let writer = ParquetWriter::new(file);
writer.batched(schema).unwrap()
}
当文件或目录不存在时,它会死机,如下所示.
called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
我的问题是,当发现文件和目录不存在时,我应该如何创建