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       System.DateTime currentTime=new System.DateTime(); 
  1.1 È¡µ±Ç°ÄêÔÂÈÕʱ·ÖÃë 
       currentTime=System.DateTime.Now; 
  1.2 È¡µ±Ç°Äê 
       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; 
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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% 
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