??????????λ????
????????λ????????????????λ?????????е???????????????????ж????????????????????????0??1????λ????????????????е???????????λ???????????
??????????????????
??????????????????????????????????к????????????о??Щ?????????
????10????????0??1??2??3??4??5??6??7??8??9??10??11??12??13??14??15??16??17??18??19??20 ???λ??10??1??????λ??0??
????2????????00000??00001??00010??00011??00100??00101??00110??00111??01000??01001??01010??01011??01100??01101??01110??01111??10000??10001??10010??10011??10100 ???λ??2??1??????λ??0??
????8????????00??01??02??03??04??05??06??07??10??11??12??13??14??15??16??17??20??21??22??23??24 ???λ??8??1??????λ??0??
????16????????0x00??0x01??0x02??0x03??0x04??0x05??0x06??0x07??0x08??0x09??0x0a??0x0b??0x0c??0x0d??0x0e??0x0f??0x10??0x11??0x12??0x13??0x14 ???λ??16??1??10~15??A~F????????????λ??0??
????2?????8?????16?????32?????64??????????10???????????ó?????????(^????η????磺2^2????2??2?η???8^5??8??5?η?)
?????λ?????????10?????=??????^(?η?)????????λ????0???????*????
?????????????(?????????)
????2????????10100=2^0*0+2^1*0+2^2*1+2^3*0+2^4*1=0+0+4+0+16=20
????8????????24=8^0*4+8^1*2=4+16=20
????16????????0x14?????0x?????????16??????????????????????????????=16^0*4+16^1*1=4+16=20
?????????????????????????磺2?????????16???????????????????????????10???????????????????????????????ó?????С???????????????0???????????????????????????????е?????????￡?
????Convert.ToString(???????????)
?????磺Convert.ToString(10??2)=01010??Convert.ToString(10??8)=12 ??Convert.ToString(13??16)=0x0d
?????????????￡?
????int i10 = 68;
????int i16 = 0x2A;
????Console.WriteLine("??????");
????Console.Write("10?????68?????2??8??16????????{0}??{1}??{2} "??
????Convert.ToString(i10?? 2)?? Convert.ToString(i10?? 8)?? Convert.ToString(i10?? 16));
????Console.Write("16?????0x2A?????2??8??10????????{0}??{1}??{2} "??
????Convert.ToString(i16?? 2)?? Convert.ToString(i16?? 8)?? Convert.ToString(i16?? 10));
????????????
????10?????68?????2??8??16????????1000100??104??44
????16?????0x2A?????2??8??10????????101010??52??42
???????????λ????λ????λ??????
??????????????????λ????????????λ?????????????????????????????????λ????
Console.WriteLine("???????");
int b0 = 0?? b1 = 1?? b2 = 2?? b3 = 4?? b4 = 8?? b5 = 16;
FormatWrite("b0"?? "b1"?? b0?? b1?? "&");
FormatWrite("b0"?? "b1"?? b0?? b1?? "|");
Console.WriteLine();
FormatWrite("b2"?? "b3"?? b2?? b3?? "&");
FormatWrite("b2"?? "b3"?? b2?? b3?? "|");
Console.WriteLine();
FormatWrite("b4"?? "b5"?? b4?? b5?? "&");
FormatWrite("b4"?? "b5"?? b4?? b5?? "|");
static void FormatWrite(string n1?? string n2?? int d1?? int d2?? string opt)
{
string writeMsg = string.Format("{0} {1} {2}"?? n1?? opt?? n2);
writeMsg += string.Format(" = {0} {1} {2}"?? d1?? opt?? d2);
string d1str = Convert.ToString(d1?? 2)?? d2str = Convert.ToString(d2?? 2);
int maxLen = Math.Max(d1str.Length?? d2str.Length);
writeMsg += string.Format(" = {0} {1} {2}"?? d1str.PadLeft(maxLen?? '0')?? opt?? d2str.PadLeft(maxLen?? '0'));
switch (opt)
{
case "&":
{
writeMsg += string.Format(" = 10?????{0} ?? 2?????{1}"?? Convert.ToString(d1 & d2?? 10)?? Convert.ToString(d1 & d2?? 2).PadLeft(maxLen?? '0'));
break;
}
case "|":
{
writeMsg += string.Format(" = 10?????{0} ?? 2?????{1}"?? Convert.ToString(d1 | d2?? 10)?? Convert.ToString(d1 | d2?? 2).PadLeft(maxLen?? '0'));
break;
}
}
Console.WriteLine(writeMsg);
}
????????????
????b0 & b1 = 0 & 1 = 0 & 1 = 10?????0 ?? 2?????0
????b0 | b1 = 0 | 1 = 0 | 1 = 10?????1 ?? 2?????1
????b2 & b3 = 2 & 4 = 010 & 100 = 10?????0 ?? 2?????000
????b2 | b3 = 2 | 4 = 010 | 100 = 10?????6 ?? 2?????110
????b4 & b5 = 8 & 16 = 01000 & 10000 = 10?????0 ?? 2?????00000
????b4 | b5 = 8 | 16 = 01000 | 10000 = 10?????24 ?? 2?????11000
????λ??????
?????μ???????????????????????????????????????????????λ???1?????λ????? 1?? ????? 0 ??????
????0 & 0 = 0??0 & 1 = 0??1 & 0 = 0??1& 1 = 1
??????????1 & 1????1???????0??
????λ??????
?????μ?????????????????????????л????????????????????λ?????????? 1?????λ????? 1??????? 0 ??????
????0|0=0; 0|1=1; 1|0=1; 1|1=1;
??????????0 & 0????0???????1??