📄 编译预处理.htm
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<P class=MsoNormal style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN style="mso-spacerun: yes"> </SPAN>#define<SPAN style="mso-spacerun: yes"> </SPAN>PRICE<SPAN style="mso-spacerun: yes"> </SPAN>150<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0cm; TEXT-INDENT: 21pt; MARGIN-RIGHT: 0cm; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN style="mso-spacerun: yes"> </SPAN> ……<o:p></o:p></SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN style="mso-spacerun: yes"> </SPAN>printf(</SPAN><SPAN style="FONT-FAMILY: 宋体">＂<SPAN lang=EN-US>The PRICE is:%d\n＂,PRICE)；<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">输出结果为：<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN lang=EN-US style="FONT-FAMILY: 宋体">The PRICE is:150</SPAN><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">而不是以下结果：<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN lang=EN-US style="FONT-FAMILY: 宋体">The 150 is:150</SPAN><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">（<SPAN lang=EN-US>7）宏定义是专门用于预处理命令的一个专用名词，只作字符替换，不分配内存空间。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">（<SPAN lang=EN-US>8）当宏定义在一行中写不下，需要在下一行继续时，只需在最后一个字符后紧接着加一个反斜杠“\”。例如：<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN style="mso-spacerun: yes"> </SPAN>#define<SPAN style="mso-spacerun: yes"> </SPAN>LEAP_YEAR<SPAN style="mso-spacerun: yes"> </SPAN>year%4==0\<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">&&year%100!=0 ||year%400==0<o:p></o:p></SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: -3.45pt; mso-char-indent-count: -.33; mso-char-indent-size: 10.45pt"><SPAN style="FONT-FAMILY: 宋体">↑</SPAN><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">第一列<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">如果在“<SPAN lang=EN-US>\”前或在下一行的开头留有空格，则在宏替换时也加入这些空格。</SPAN></SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><SPAN lang=EN-US><FONT color=#ff0000></p><p align='center'><b><font color='red'>[1]</font> <a href='/c/ShowArticle.asp?ArticleID=136&Page=2'>[2]</a> <a href='/c/ShowArticle.asp?ArticleID=136&Page=3'>[3]</a> <a href='/c/ShowArticle.asp?ArticleID=136&Page=4'>[4]</a> <a href='/c/ShowArticle.asp?ArticleID=136&Page=5'>[5]</a> <a href='/c/ShowArticle.asp?ArticleID=136&Page=2'>下一页</a></b></p> </td>
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<P align=right>教程录入：jiarucheng 责任编辑：Songshao00 </P></td>
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<p align="left"> <li>上一个教程： <a class='LinkPrevArticle' href='/c/ShowArticle.asp?ArticleID=68' title='文章标题：循环语句中的break和continue有何区别？
作 者：未知
更新时间：2006-6-9 8:57:02'>循环语句中的break和continue有何区别？</a></li><BR> <li>下一个教程： <a class='LinkNextArticle' href='/c/ShowArticle.asp?ArticleID=138' title='文章标题：编译预处理《实训 定义宏和使用宏定义>>
作 者：佚名
更新时间：2006-6-15 20:34:33'>编译预处理《实训 定义宏和使用宏定义>></a></li></p>
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<td width=758 bgColor=#adb9dd>##相关推荐：</td>
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<td vAlign=top height=118><a class='LinkArticleCorrelative' href='/c/ShowArticle.asp?ArticleID=138' title='文章标题：编译预处理《实训 定义宏和使用宏定义>>
作 者：佚名
更新时间：2006-6-15 20:34:33' target="_self">编译预处理《实训 定义宏和…</a><br></td>
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