rust_ownership.rs

fn change(mut arr:[i32;6]){
    arr[0]=234;
    let p=&arr;
    //println!("into change address {:p}",p);
    //println!("into cahange is {:?}", arr);
}
struct Point{
    x:i32,
    y:i32,
}

fn main() {

    let mut arr2: [i32;6] = [1, 2, 3, 4,5,6];
    let p=&arr2;
    println!("main address {:p}",p);
    change(arr2);
    println!("after cahange is {:?}", arr2);
    
    let s1=String::from("aa");//Point{x:1,y:2};
    let p2=&s1;
    println!("p2:{:p} {:p} {:p} {:p}",p2,&s1,&p2,&s1[0..1]);
    let s2=s1;
    let p3=&s2;
    println!("p3:{:p} {:p} {:p} {:p}",p3,&s2,&p3,&s2[0..1]);
   
}