Version: 2021.1

Hash128

struct in UnityEngine

切换到手册

描述

Represents a 128-bit hash value.

Use Hash128 to uniquely identify a piece of data. A 128-bit hash value has an extremely low probability of hash collisions, so you can assume that if the hash values of two pieces of data are identical, then the data is identical too. For example, to quickly determine whether texture pixel contents have changed, or if they are identical between several textures, you can use Texture.imageContentsHash.

To compute the hash values for some data, use the Hash128.Compute function. To compute the hash values incrementally for several pieces of data, use Hash128.Append.

using UnityEngine;

public class ExampleScript : MonoBehaviour { void Start() { var hash = new Hash128(); hash.Append(42); hash.Append(13.0f); hash.Append("Hello"); hash.Append(new int[] {1, 2, 3, 4, 5}); // prints "2d6e582c3fcfb4b8f3c16650a75dc37b" Debug.Log(hash.ToString()); } }

The hash algorithm used to compute Hash128 values is SpookyHash V2. Note that while this hash algorithm is quite fast to compute and has good hash distribution qualities, it is not a cryptographic hash function.

变量

isValidReturns true is the hash value is valid. (Read Only)

构造函数

Hash128Directly initialize a Hash128 with a 128-bit value.

公共函数

AppendHash new input data and combine with the current hash value.
ToStringConvert a Hash128 to string.

静态函数

ComputeCompute a hash of input data.
ParseConvert a hex-encoded string into Hash128 value.
Copyright © 2023 Unity Technologies
优美缔软件(上海)有限公司 版权所有
"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。
公安部备案号:
31010902002961