源码
1 [StructLayout(LayoutKind.Explicit)] 2 public struct IP 3 { 4 public IP(UInt32 value) 5 { 6 this._text1 = 0; 7 this._text2 = 0; 8 this._text3 = 0; 9 this._text4 = 0; 10 this._value = value; 11 } 12 public IP(Byte text1, Byte text2, Byte text3, Byte text4) 13 { 14 this._value = 0; 15 this._text1 = text1; 16 this._text2 = text2; 17 this._text3 = text3; 18 this._text4 = text4; 19 } 20 [FieldOffset(0)] 21 private UInt32 _value; 22 [FieldOffset(0)] 23 private Byte _text1; 24 [FieldOffset(1)] 25 private Byte _text2; 26 [FieldOffset(2)] 27 private Byte _text3; 28 [FieldOffset(3)] 29 private Byte _text4; 30 31 public UInt32 Value 32 { 33 get { return this._value; } 34 set { this._value = value; } 35 } 36 public Byte Text1 37 { 38 get { return this._text1; } 39 set { this._text1 = value; } 40 } 41 public Byte Text2 42 { 43 get { return this._text2; } 44 set { this._text2 = value; } 45 } 46 public Byte Text3 47 { 48 get { return this._text3; } 49 set { this._text3 = value; } 50 } 51 public Byte Text4 52 { 53 get { return this._text4; } 54 set { this._text4 = value; } 55 } 56 57 public override string ToString() 58 { 59 return String.Format("{0}.{1}.{2}.{3}", this._text1.ToString(), this._text2.ToString(), 60 this._text3.ToString(), this._text4.ToString()); 61 } 62 63 public static implicit operator IP(UInt32 value) 64 { 65 return new IP(value); 66 } 67 public static explicit operator UInt32(IP ip) 68 { 69 return ip._value; 70 } 71 }
测试
1 class Program 2 { 3 static void Main(string[] args) 4 { 5 IP ip = new IP(192,168,1,1); 6 Console.WriteLine(ip); 7 UInt32 value = (UInt32)ip; 8 Console.WriteLine(value); 9 Console.WriteLine(ip.Value); 10 IP ip2 = (IP)(1234567); 11 Console.WriteLine(ip2); 12 13 Console.ReadKey(); 14 } 15 }
作者:
Blackheart
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。