vec_test.rs -> vec.rs

This commit is contained in:
2020-01-30 22:04:35 +08:00
parent 8d870b6ee5
commit 74db6bb1bb

View File

@@ -1,25 +0,0 @@
fn main() {
let v = vec![1, 3, 5];
println!("For each print:");
for x in &v {
println!("{}", x);
}
println!("Enumerate for each print:");
for (i, x) in v.iter().enumerate() {
println!("{} -> {}", i, x);
}
println!("Pop print:");
let mut v2 = vec![2, 4, 6];
while let Some(x) = v2.pop() {
println!("{}", x);
}
println!("Map:");
let v3: Vec<i32> = (0..3).collect();
let v4 = v3.iter().map(|&x| x * 2).collect::<Vec<_>>();
println!("{:?} -> {:?}", v3, v4);
}