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       System.DateTime currentTime=new System.DateTime(); 
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       int Äê=currentTime.Year; 
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       int ÔÂ=currentTime.Month; 
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       int ÈÕ=currentTime.Day; 
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       int ʱ=currentTime.Hour; 
  1.6 È¡µ±Ç°·Ö 
       int ·Ö=currentTime.Minute; 
  1.7 È¡µ±Ç°Ãë 
       int Ãë=currentTime.Second; 
  1.8 È¡µ±Ç°ºÁÃë 
    int ºÁÃë=currentTime.Millisecond; 
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3¡¢  ±äÁ¿.ToString()      
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   12345.ToString("C");        //Éú³É £¤12,345.00 
   12345.ToString("e");        //Éú³É 1.234500e+004 
   12345.ToString("f4");        //Éú³É 12345.0000 
   12345.ToString("x");         //Éú³É 3039  (16½øÖÆ) 
   12345.ToString("p");         //Éú³É 1,234,500.00% 
4¡¢±äÁ¿.Length  Êý×ÖÐÍ 
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//default.aspx.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.Runtime.InteropService ......
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