C#Object.GetHashCode()方法与示例
C#中的Object.GetHashCode()方法用作默认的哈希函数。
语法
public virtual int GetHashCode ();
示例
现在让我们看一个例子-
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());
}
}输出结果
Hash Code =30015890 Hash Code =21083178
示例
现在让我们来看另一个示例：
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());
}
}输出结果
这将产生以下输出-
1258 12803 8931