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Trust reverse traversal rev()
2022-07-21 13:48:00 【liberg】
Rust Iterators in (Iterator) Support reverse operation :
// Reverse traversal
println!("{:?}", "-".repeat(10));
// Output :4,3,2,1,0,
vec![0, 1, 2, 3, 4].iter().rev().for_each(|x|print!("{x},"));
println!();
// Output :9,8,7,6,5,4,3,2,1,0,
for i in (0..10).rev() {
print!("{:?},", i);
}
println!("\n{:?}", "-".repeat(10));
About Iterator Complete usage of , May refer to :Rust 10: iterator (Iterator) Detailed explanation
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