rustHow to write bytes to file in Rust

Writing bytes to a file in Rust is a simple process. First, you need to open a file in write-only mode using the File::create method. Then, you can write bytes to the file using the write_all method. Finally, you can close the file using the close method. The following ## Code example shows how to write bytes to a file in Rust:

use std::fs::File;
use std::io::prelude::*;

fn main() {
    let mut file = File::create("example.txt").expect("Failed to create file");
    let bytes = b"Hello, world!";
    file.write_all(bytes).expect("Failed to write bytes");
    file.close().expect("Failed to close file");
}

In this example, we open a file called example.txt in write-only mode using the File::create method. Then, we write the bytes b"Hello, world!" to the file using the write_all method. Finally, we close the file using the close method.

Helpful links

• Rust Documentation - File
• Rust Documentation - Write All
• Rust Documentation - Close

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