---
title: 设置随机种子函数
description: "重新设置输入policy的随机种子。"
url: https://www.hikunpeng.com/document/detail/zh/hpchistory/hpckit/develop2400/kunpengaccel_kml_0448.html
sourcePath: /source/zh/hpchistory/hpckit/develop2400/kunpengaccel_kml_0448.html
indexId: b85e9a732ccc3a1cc70cead4c5def74cffb58de6f331ddc0294a0fac95ab234c67
---
# 设置随机种子函数

重新设置输入policy的随机种子。

#### 接口定义

KmlVslResult kml_vsl_setSeed(VslPolicy *policy, uint32_t seed);


#### 参数

| 参数名 | 类型 | 描述 | 输入/输出 |
| --- | --- | --- | --- |
| policy | VslPolicy类型的指针 | 指向随机数生成器结构体的指针。 | 输出 |
| seed | uint32\_t | 随机数种子。 | 输入 |


#### 依赖

#include "kvsl.h"


#### 示例

```
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include "kvsl.h"
int main()
{
    VslPolicy *policy;
    kml_vsl_init(&policy, LECUYER_CMRG, time(NULL));
    kml_vsl_setRNGKind(policy, WICHMANN_HILL);
    kml_vsl_setSeed(policy, 0);
    kml_vsl_destroy(policy);
}
```