C# Object.GetHashCode() 方法及示例
C# 中的 Object.GetHashCode() 方法用作默认哈希函数。
语法
public virtual int GetHashCode ();
示例
下面看一个示例 -
using System; public class Demo { public static void Main() { Object ob = new Object(); String str = "Jim"; Type type1 = ob.GetType(); Type type2 = str.GetType(); Console.WriteLine("Hash Code = "+type1.GetHashCode()); Console.WriteLine("Hash Code = "+type2.GetHashCode()); } }
输出
Hash Code =30015890 Hash Code =21083178
示例
下面看另一个示例
using System; public struct Value { private int v1; private int v2; private int v3; public Value(int v1, int v2, int v3) { this.v1 = v1; this.v2 = v2; this.v3 = v3; } public override int GetHashCode() { return Tuple.Create(v1, v2, v3).GetHashCode(); } } public class Demo { public static void Main() { Value v = new Value(1, 7, 12); Console.WriteLine(v.GetHashCode()); v = new Value(12, 8, 7); Console.WriteLine(v.GetHashCode()); v = new Value(8, 7, 12); Console.WriteLine(v.GetHashCode()); } }
输出
将生成以下输出 -
1258 12803 8931
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