📅  最后修改于: 2022-03-11 14:49:24.909000             🧑  作者: Mango
fn change_value(arr: &mut [i32]) {
arr[1] = 10;
}
fn main() {
let mut arr: [i32; 4] = [1, 2, 3, 4];
change_value(&mut arr);
println!("this is {}", arr[1]);
}