rustHow to write to file in Rust

Writing to a file in Rust is a straightforward process. First, you need to open a file in write-only mode using the File::create method. Then, you can write data 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 a string to a file:

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

fn main() {
    let mut file = File::create("my_file.txt").expect("Failed to create file");
    let data = "This is a string to write to the file";

    file.write_all(data.as_bytes()).expect("Failed to write to file");
}

In this example, we open a file called my_file.txt in write-only mode using the File::create method. Then, we write a string to the file using the write_all method. Finally, we close the file using the close method. After running this code, the file my_file.txt will contain the string This is a string to write to the file.

Helpful links

• File::create
• write_all
• close

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