ขอประกาศว่าตัวแปรจากอาเรย์สนิม

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4
0

วิธีที่จะทำให้เป็นอาเรย์อยู่ในสนิม

//Array declaration. Array sizes must be known at compile time
let my_array: [i32; 5] = [1, 2, 3, 4, 5];

//If the size of the array is not known at compile time. Use a slice or a vector
1
0

อาเรย์นเป็นพารามิเตอร์สนิม

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]);
}

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