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  • shr 右移测试

    fdword :DWORD;
    procedure TForm10.btn1Click(Sender: TObject);
     var  temp:DWORD;
    begin
      fdword :=786627;    //786627  11000000000011000011
      temp := fdword shr (1*8);    //
      ShowMessage(IntToStr(temp)); //3072   110000000000
      temp := fdword shr (2*8);
      ShowMessage(IntToStr(temp));  //12  1100
      temp := fdword shr (3*8);
      ShowMessage(IntToStr(temp));  //0   0
      temp := fdword shr (4*8);
      ShowMessage(IntToStr(temp));//786627    11000000000011000011
    
      temp := fdword shr (5*8);  //右移 5个字节  提示错误
      //[DCC Error] Unit10.pas(41): E1012 Constant expression violates subrange bounds
      //(DCC错误)Unit10.pas(41):E1012常数表达式违反了附属的区域范围
    
    end;
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  • 原文地址:https://www.cnblogs.com/rogge7/p/5993566.html
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