📄 百度_c语言吧_c语言高效编程的的四大绝招 (转贴).mht
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<TD class=3Dgray align=3Dmiddle width=3D"3%" height=3D17>1</TD>
<TD class=3Dp14 align=3Dleft><A name=3D113785173></A><FONT=20
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=F3=BE=F8=D5=D0 (=D7=AA=CC=F9) </FONT></TD></TR>
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<BR><BR>=A1=A1=A1=A1=D2=FD=D1=D4=A3=BA=20
=
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=B4=FA=C2=EB=A3=AC=CA=C7=D0=ED=B6=E0=C8=ED=BC=FE=B9=A4=B3=CC=CA=A6=D7=B7=C7=
=F3=B5=C4=C4=BF=B1=EA=A1=A3=B1=BE=CE=C4=BE=CD=B9=A4=D7=F7=D6=D0=B5=C4=D2=BB=
=D0=A9=CC=E5=BB=E1=BA=CD=BE=AD=D1=E9=D7=F6=CF=E0=B9=D8=B5=C4=B2=FB=CA=F6=A3=
=AC=B2=BB=B6=D4=B5=C4=B5=D8=B7=BD=C7=EB=B8=F7=CE=BB=D6=B8=BD=CC=A1=A3=20
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=BC=E4=20
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=C7=C3=B4=A3=AC=B4=D3=D5=E2=B8=F6=BD=C7=B6=C8=B3=F6=B7=A2=C4=E6=CF=F2=CB=BC=
=CE=AC=C0=B4=BF=BC=C2=C7=B3=CC=D0=F2=B5=C4=D0=A7=C2=CA=CE=CA=CC=E2=A3=AC=CE=
=D2=C3=C7=BE=CD=D3=D0=C1=CB=BD=E2=BE=F6=CE=CA=CC=E2=B5=C4=B5=DA1=D5=D0--=D2=
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=
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=A1=A3 =
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=20
<BR><BR>#define LEN 32 =
<BR>char string1 [LEN];=20
<BR>memset (string1,0,LEN);=20
=
<BR>strcpy (string1,"This is a example!!"=A3=A9;=20
<BR><BR>=A1=A1=A1=A1=B7=BD=B7=A8B=A3=BA=20
=
<BR><BR>const char string2[LEN] =3D"This is a&nb=
sp;example!";=20
<BR>char * cp; <BR>cp =3D string2 ; =
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=D3=C3=D6=B8=D5=EB=C0=B4=B2=D9=D7=F7=A1=A3=20
=
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=B3=F6=A3=ACA=BA=CDB=B5=C4=D0=A7=C2=CA=CA=C7=B2=BB=C4=DC=B1=C8=B5=C4=A1=A3=
=D4=DA=CD=AC=D1=F9=B5=C4=B4=E6=B4=A2=BF=D5=BC=E4=CF=C2=A3=ACB=D6=B1=BD=D3=
=CA=B9=D3=C3=D6=B8=D5=EB=BE=CD=BF=C9=D2=D4=B2=D9=D7=F7=C1=CB=A3=AC=B6=F8A=
=D0=E8=D2=AA=B5=F7=D3=C3=C1=BD=B8=F6=D7=D6=B7=FB=BA=AF=CA=FD=B2=C5=C4=DC=CD=
=EA=B3=C9=A1=A3B=B5=C4=C8=B1=B5=E3=D4=DA=D3=DA=C1=E9=BB=EE=D0=D4=C3=BB=D3=
=D0A=BA=C3=A1=A3=D4=DA=D0=E8=D2=AA=C6=B5=B7=B1=B8=FC=B8=C4=D2=BB=B8=F6=D7=
=D6=B7=FB=B4=AE=C4=DA=C8=DD=B5=C4=CA=B1=BA=F2=A3=ACA=BE=DF=D3=D0=B8=FC=BA=
=C3=B5=C4=C1=E9=BB=EE=D0=D4=A3=BB=C8=E7=B9=FB=B2=C9=D3=C3=B7=BD=B7=A8B=A3=
=AC=D4=F2=D0=E8=D2=AA=D4=A4=B4=E6=D0=ED=B6=E0=D7=D6=B7=FB=B4=AE=A3=AC=CB=E4=
=C8=BB=D5=BC=D3=C3=C1=CB=B4=F3=C1=BF=B5=C4=C4=DA=B4=E6=A3=AC=B5=AB=CA=C7=BB=
=F1=B5=C3=C1=CB=B3=CC=D0=F2=D6=B4=D0=D0=B5=C4=B8=DF=D0=A7=C2=CA=A1=A3=20
=
<BR><BR>=A1=A1=A1=A1=C8=E7=B9=FB=CF=B5=CD=B3=B5=C4=CA=B5=CA=B1=D0=D4=D2=AA=
=C7=F3=BA=DC=B8=DF=A3=AC=C4=DA=B4=E6=BB=B9=D3=D0=D2=BB=D0=A9=A3=AC=C4=C7=CE=
=D2=CD=C6=BC=F6=C4=E3=CA=B9=D3=C3=B8=C3=D5=D0=CA=FD=A1=A3=B8=C3=D5=D0=CA=FD=
=B5=C4=B1=E4=D5=D0--=CA=B9=D3=C3=BA=EA=BA=AF=CA=FD=B6=F8=B2=BB=CA=C7=BA=AF=
=CA=FD=A1=A3=BE=D9=C0=FD=C8=E7=CF=C2=A3=BA=20
<BR><BR>=A1=A1=A1=A1=B7=BD=B7=A8C=A3=BA =
<BR><BR>#define bwMCDR2_ADDRESS 4=20
<BR>#define bsMCDR2_ADDRESS 17=20
<BR>int BIT_MASK(int __bf) <BR>{=20
=
<BR>=A1=A1return ((1U << (bw ## __bf))&nbs=
p;- 1) << (bs ## __bf);=20
<BR>}=20
=
<BR>void SET_BITS(int __dst, int __bf, int =
__val)=20
<BR>{=20
=
<BR>=A1=A1__dst =3D ((__dst) & ~(BIT_MASK(__bf)))=
| \=20
=
<BR>=A1=A1(((__val) << (bs ## __bf)) &=
(BIT_MASK(__bf))))=20
<BR>}=20
=
<BR><BR>SET_BITS(MCDR2, MCDR2_ADDRESS, RegisterNumber);=20
<BR><BR>=A1=A1=A1=A1=B7=BD=B7=A8D=A3=BA =
<BR><BR>#define bwMCDR2_ADDRESS 4=20
<BR>#define bsMCDR2_ADDRESS 17=20
=
<BR>#define bmMCDR2_ADDRESS BIT_MASK(MCDR2_ADDRESS)=20
=
<BR>#define BIT_MASK(__bf) (((1U << (bw ##=
__bf)) - 1) << (bs ## __bf))=20
=
<BR>#define SET_BITS(__dst, __bf, __val) \=20
=
<BR>((__dst) =3D ((__dst) & ~(BIT_MASK(__bf)))&nb=
sp;| \=20
=
<BR>(((__val) << (bs ## __bf)) & =
(BIT_MASK(__bf))))=20
=
<BR><BR>SET_BITS(MCDR2, MCDR2_ADDRESS, RegisterNumber);=20
=
<BR><BR>=A1=A1=A1=A1=BA=AF=CA=FD=BA=CD=BA=EA=BA=AF=CA=FD=B5=C4=C7=F8=B1=F0=
=BE=CD=D4=DA=D3=DA=A3=AC=BA=E⌨️ 快捷键说明
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