get system platform in rust

You can get the system platform in Rust by using the std::env::consts::OS constant. This returns a string that represents the operating system (OS) on which the current code is being executed.

Here's an example:

main.rs
fn main() {
    let os = std::env::consts::OS;
    println!("Operating system: {}", os);
}
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This will print the current operating system to the console. The value returned by std::env::consts::OS can be one of the following strings:

• "linux"
• "macos"
• "ios"
• "freebsd"
• "dragonfly"
• "netbsd"
• "openbsd"
• "solaris"
• "windows"

This information can be useful if you need to write OS-specific code or if you want to provide OS-specific behavior in your Rust program.