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be9931c8a1
* feat: add ruby code - chapter hashing * feat: add ruby code blocks - chapter hashing * fix: comments
44 lines
1 KiB
Ruby
44 lines
1 KiB
Ruby
=begin
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File: hash_map.rb
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Created Time: 2024-04-14
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Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com)
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=end
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require_relative '../utils/print_util'
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### Driver Code ###
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if __FILE__ == $0
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# 初始化哈希表
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hmap = {}
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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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hmap[12836] = "小哈"
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hmap[15937] = "小啰"
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hmap[16750] = "小算"
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hmap[13276] = "小法"
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hmap[10583] = "小鸭"
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puts "\n添加完成后，哈希表为\nKey -> Value"
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print_hash_map(hmap)
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# 查询操作
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# 向哈希表中输入键 key ，得到值 value
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name = hmap[15937]
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puts "\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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hmap.delete(10583)
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puts "\n删除 10583 后，哈希表为\nKey -> Value"
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print_hash_map(hmap)
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# 遍历哈希表
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puts "\n遍历键值对 Key->Value"
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hmap.entries.each { |key, value| puts "#{key} -> #{value}" }
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puts "\n单独遍历键 Key"
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hmap.keys.each { |key| puts key }
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puts "\n单独遍历值 Value"
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hmap.values.each { |val| puts val }
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end
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