#![allow(unused_variables)]
#![allow(non_snake_case)]
#![allow(non_camel_case_types)]
#![allow(unused_parens)]
#![allow(unused_assignments)]
#![allow(unused_mut)]
#![allow(dead_code)]
fn main()
{
let s = "aλb";
println!("s.len() :{}",s.len());
for c in s.chars()
{
println!("char {}, len {}",c,c.len_utf8());
}
let su = s.as_bytes(); // get &[u8] (from utf_8)
for b in su {
println!("byte {}, as char {}",b,*b as char);
}
}//main