#include<stdio.h>
#include <stdlib.h>

unsigned int SDBMHash(char *str)
{
	unsigned int hash = 0;
	while (*str)
	{
		// equivalent to: hash = 65599*hash + (*str++);
		hash = (*str++) + (hash << 6) + (hash << 16) - hash;
	}
	return (hash & 0x7FFFFFFF);
}
//哈希用于SHA256加密   哈希仅仅能加密无法解密   还运用于卡巴斯基病毒库的源代码中，应用广，功能<span style="font-family: Arial, Helvetica, sans-serif;">很强大</span>
void main()
{
	printf("%u", SDBMHash("rocket"));
	printf("\n%u", SDBMHash("rocket"));
	printf("\n%u", SDBMHash("zrf-rocket"));
	printf("\n%u",SDBMHash("黑鹰"));
	getchar();
}