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  • 根据当前日期返回星期数

    private string CaculateWeekDay(int y,int m, int d)
     {
     if(m==1) m=13;
     if(m==2) m=14;
     int week=(d+2*m+3*(m+1)/5+y+y/4-y/100+y/400)%7;
     string weekstr="";
     switch(week)
     {
      case 1: weekstr="星期一"; break;
      case 2: weekstr="星期二"; break;
      case 3: weekstr="星期三"; break;
      case 4: weekstr="星期四"; break;
      case 5: weekstr="星期五"; break;
      case 6: weekstr="星期六"; break;
      case 7: weekstr="星期日"; break;
     }

     return weekstr;
     }

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  • 原文地址:https://www.cnblogs.com/conquer/p/553307.html
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