如何在Go中生成字符串的哈希数？

Question

For example:

hash("HelloWorld") = 1234567

Is there any built-in function could do this ?

Thanks.

Answer 1

The hash package is helpful for this. Note it's an abstraction over specific hash implementations. Some ready made are found in the package subdirectories.

Example:

package main

import (
        "fmt"
        "hash/fnv"
)

func hash(s string) uint32 {
        h := fnv.New32a()
        h.Write([]byte(s))
        return h.Sum32()
}

func main() {
        fmt.Println(hash("HelloWorld"))
        fmt.Println(hash("HelloWorld."))
}

(Also here)

---

Output:

926844193
107706013