add input.rs

single_file_tests/input.rs

@@ -0,0 +1,11 @@
+use std::{ io, error::Error, };
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut input = String::new();
+
+    println!("Please input: ");
+    io::stdin().read_line(&mut input)?;
+
+    println!("You typed: {}", input.trim());
+
+    Ok(())
+}