mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-26 12:26:29 +08:00
f68bbb0d59
* Revised the book * Update the book with the second revised edition * Revise base on the manuscript of the first edition
74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
// File: hash_map_test.go
|
||
// Created Time: 2022-12-14
|
||
// Author: msk397 (machangxinq@gmail.com)
|
||
|
||
package chapter_hashing
|
||
|
||
import (
|
||
"fmt"
|
||
"strconv"
|
||
"testing"
|
||
|
||
. "github.com/krahets/hello-algo/pkg"
|
||
)
|
||
|
||
func TestHashMap(t *testing.T) {
|
||
/* 初始化哈希表 */
|
||
hmap := make(map[int]string)
|
||
|
||
/* 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"
|
||
fmt.Println("\n添加完成后，哈希表为\nKey -> Value")
|
||
PrintMap(hmap)
|
||
|
||
/* 查询操作 */
|
||
// 向哈希表中输入键 key ，得到值 value
|
||
name := hmap[15937]
|
||
fmt.Println("\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)
|
||
delete(hmap, 10583)
|
||
fmt.Println("\n删除 10583 后，哈希表为\nKey -> Value")
|
||
PrintMap(hmap)
|
||
|
||
/* 遍历哈希表 */
|
||
// 遍历键值对 key->value
|
||
fmt.Println("\n遍历键值对 Key->Value")
|
||
for key, value := range hmap {
|
||
fmt.Println(key, "->", value)
|
||
}
|
||
// 单独遍历键 key
|
||
fmt.Println("\n单独遍历键 Key")
|
||
for key := range hmap {
|
||
fmt.Println(key)
|
||
}
|
||
// 单独遍历值 value
|
||
fmt.Println("\n单独遍历值 Value")
|
||
for _, value := range hmap {
|
||
fmt.Println(value)
|
||
}
|
||
}
|
||
|
||
func TestSimpleHash(t *testing.T) {
|
||
var hash int
|
||
|
||
key := "Hello 算法"
|
||
|
||
hash = addHash(key)
|
||
fmt.Println("加法哈希值为 " + strconv.Itoa(hash))
|
||
|
||
hash = mulHash(key)
|
||
fmt.Println("乘法哈希值为 " + strconv.Itoa(hash))
|
||
|
||
hash = xorHash(key)
|
||
fmt.Println("异或哈希值为 " + strconv.Itoa(hash))
|
||
|
||
hash = rotHash(key)
|
||
fmt.Println("旋转哈希值为 " + strconv.Itoa(hash))
|
||
}
|