hello-algo/codes/python/chapter_hashing/hash_map.py
krahets 932d14644d Polish the content
Polish the chapter preface, introduction and complexity anlysis
2023-08-08 23:16:33 +08:00

49 lines
1.2 KiB
Python

"""
File: hash_map.py
Created Time: 2022-12-14
Author: msk397 (machangxinq@gmail.com)
"""
import sys, os.path as osp
sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))
from modules import *
"""Driver Code"""
if __name__ == "__main__":
# 初始化哈希表
hmap = dict[int, str]()
# 添加操作
# 在哈希表中添加键值对 (key, value)
hmap[12836] = "小哈"
hmap[15937] = "小啰"
hmap[16750] = "小算"
hmap[13276] = "小法"
hmap[10583] = "小鸭"
print("\n添加完成后,哈希表为\nKey -> Value")
print_dict(hmap)
# 查询操作
# 向哈希表输入键 key ,得到值 value
name: str = hmap[15937]
print("\n输入学号 15937 ,查询到姓名 " + name)
# 删除操作
# 在哈希表中删除键值对 (key, value)
hmap.pop(10583)
print("\n删除 10583 后,哈希表为\nKey -> Value")
print_dict(hmap)
# 遍历哈希表
print("\n遍历键值对 Key->Value")
for key, value in hmap.items():
print(key, "->", value)
print("\n单独遍历键 Key")
for key in hmap.keys():
print(key)
print("\n单独遍历值 Value")
for val in hmap.values():
print(val)