RUST

reverse a string with runes

runes := []rune(s)
for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
   runes[i], runes[j] = runes[j], runes[i]
}
t := string(runes)

reverse a string with runes

// Reverse a string with runes
fn main() {
    let r: String = "一二三四五六七八九十".chars().rev().collect();
    println!("original    {:?}", "一二三四五六七八九十");
    println!("reverse r = {:?}", "一二三四五六七八九十");    
    assert_eq!(r, "十九八七六五四三二一");
}