C#之IP地址和整数互转的小例子

概述源码：复制代码代码如下:[StructLayout(LayoutKind.Explicit)] publicstructIP {    publicIP(UInt32value)    {       &nb

源码：
复制代码 代码如下:
[StructLayout(LayoutKind.Explicit)]
 public struct IP
 {
     public IP(UInt32 value)
     {
         this._text1 = 0;
         this._text2 = 0;
         this._text3 = 0;
         this._text4 = 0;
         this._value = value;
     }
     public IP(Byte text1,Byte text2,Byte text3,Byte text4)
     {
         this._value = 0;
         this._text1 = text1;
         this._text2 = text2;
         this._text3 = text3;
         this._text4 = text4;
     }
     [FIEldOffset(0)]
     private UInt32 _value;
     [FIEldOffset(0)]
     private Byte _text1;
     [FIEldOffset(1)]
     private Byte _text2;
     [FIEldOffset(2)]
     private Byte _text3;
     [FIEldOffset(3)]
     private Byte _text4;

     public UInt32 Value
     {
         get { return this._value; }
         set { this._value = value; }
     }
     public Byte Text1
     {
         get { return this._text1; }
         set { this._text1 = value; }
     }
     public Byte Text2
     {
         get { return this._text2; }
         set { this._text2 = value; }
     }
     public Byte Text3
     {
         get { return this._text3; }
         set { this._text3 = value; }
     }
     public Byte Text4
     {
         get { return this._text4; }
         set { this._text4 = value; }
     }

     public overrIDe string ToString()
     {
         return String.Format("{0}.{1}.{2}.{3}",this._text1.ToString(),this._text2.ToString(),
             this._text3.ToString(),this._text4.ToString());
     }

     public static implicit operator IP(UInt32 value)
     {
         return new IP(value);
     }
     public static explicit operator UInt32(IP ip)
     {
         return ip._value;
     }
 }

测试：
复制代码 代码如下:
class Program
 {
     static voID Main(string[] args)
     {
         IP ip = new IP(192,168,1,1);
         Console.Writeline(ip);
         UInt32 value = (UInt32)ip;
         Console.Writeline(value);
         Console.Writeline(ip.Value);
         IP ip2 = (IP)(1234567);
         Console.Writeline(ip2);

         Console.ReadKey();
     }
 }

总结

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