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e65c7bd478
* Refine some details and coding style for Rust codes * Update coding style for Rust codes * Update time_complexity.rs * Update array.rs * Update leetcode_two_sum.rs * Update hash_map.rs * Update file headers * Update coding style for Rust codes and Zig codes * Update coding style for Rust codes and Zig codes --------- Co-authored-by: Yudong Jin <krahets@163.com>
48 lines
1.3 KiB
Rust
48 lines
1.3 KiB
Rust
/*
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* File: hash_map.rs
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* Created Time: 2023-02-05
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* Author: sjinzh (sjinzh@gmail.com)
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*/
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include!("../include/include.rs");
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use std::collections::HashMap;
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/* Driver Code */
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pub fn main() {
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// 初始化哈希表
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let mut map = HashMap::new();
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// 添加操作
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// 在哈希表中添加键值对 (key, value)
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map.insert(12836, "小哈");
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map.insert(15937, "小啰");
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map.insert(16750, "小算");
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map.insert(13276, "小法");
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map.insert(10583, "小鸭");
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println!("\n添加完成后，哈希表为\nKey -> Value");
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print_util::print_hash_map(&map);
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// 查询操作
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// 向哈希表输入键 key ，得到值 value
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let name = map.get(&15937).copied().unwrap();
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println!("\n输入学号 15937 ，查询到姓名 {name}");
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// 删除操作
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// 在哈希表中删除键值对 (key, value)
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_ = map.remove(&10583);
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println!("\n删除 10583 后，哈希表为\nKey -> Value");
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print_util::print_hash_map(&map);
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// 遍历哈希表
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println!("\n遍历键值对 Key->Value");
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print_util::print_hash_map(&map);
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println!("\n单独遍历键 Key");
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for key in map.keys() {
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println!("{key}");
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}
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println!("\n单独遍历值 value");
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for value in map.values() {
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println!("{value}");
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}
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}
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