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1.\u7b80\u5355\u7684\u5b8f\u5b9a\u4e49<\/strong><\/p> \n

#define \u6807\u8bc6\u7b26 \u66ff\u6362\u5217\u8868(\u66ff\u6362\u5217\u8868\u53ef\u4ee5\u662f\u6570\uff0c\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\uff0c\u6807\u70b9\u7b26\u53f7\uff0c\u8fd0\u7b97\u7b26\uff0c\u6807\u8bc6\u7b26\uff0c\u5173\u952e\u5b57\uff0c\u5b57\u7b26\u5e38\u91cf\u3002\u6ce8\u610f\uff1a\u66ff\u6362\u5217\u8868\u662f\u53ef\u4ee5\u4e3a\u7a7a\u7684)<\/p> \n

\u5178\u578b\u9519\u8bef\uff1a<\/p> \n

#define N = 100<\/p> \n

int a[N]; \/*\u8fd9\u6837\u4f1a\u6210\u4e3aint a[= 100],\u8fd9\u91cc\u4f1a\u5904\u7406\u6210\u4e3a\u4e00\u79cd\u6807\u8bc6\u8bb0\u53f7\u4e00\u6837*\/<\/p> \n

#define N 100;<\/p> \n

int a[N]; \/*\u5e26\u5206\u53f7\u7684\u5b9a\u4e49\u4f1a\u6210\u4e3aint a[100;],\u8fd9\u662f\u4e00\u79cd\u5f88\u5e38\u89c1\u7684\u9519\u8bef*\/<\/p> \n

#define pin (int*);<\/p> \n

pin a,b;<\/p> \n

int* a,b; \/*\u672c\u610f\u662fa\u548cb\u90fd\u662fint\u578b\u6307\u9488\uff0c\u4f46\u662f\u5b9e\u9645\u4e0a\u53d8\u6210int* a,b;a\u662fint\u578b\u6307\u9488\uff0c\u800cb\u662fint\u578b\u53d8\u91cf\u3002\u8fd9\u662f\u5e94\u8be5\u4f7f\u7528typedef\u6765\u4ee3\u66ffdefine\uff0c\u8fd9\u6837a\u548cb\u5c31\u90fd\u662fint\u578b\u6307\u9488\u4e86\u3002*\/<\/p> \n

\u5178\u578b\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/strong><\/p> \n

\u4f7f\u7528\u5b8f\u5b9a\u4e49\u6211\u4eec\u53ef\u4ee5\u81ea\u5df1\u6839\u636e\u81ea\u5df1\u7684\u4e60\u60ef\u6765\u5b9a\u4e49\u751a\u81f3\u6539\u53d8C\u8bed\u8a00<\/a>\u7684\u8bed\u6cd5\u4e60\u60ef\uff0c\u4f8b\u5982\uff1a<\/p> \n

#define BEGIN {<\/p> \n

#define END }<\/p> \n

int main()BEGIN<\/p> \n

printf (\"DEFINE----\\n\");<\/p> \n

END<\/p> \n

\u5b9a\u4e49\u4e00\u4e2a\u5faa\u73af<\/p> \n

#define LOOP for(;;)<\/p> \n

\u91cd\u65b0\u5b9a\u4e49\u6570\u636e\u7c7b\u578b<\/p> \n

#define IT int<\/p> \n

2.\u5e26\u53c2\u6570\u7684\u5b8f<\/strong><\/p> \n

#define \u6807\u8bc6\u7b26(x1,x2,x3...xn) \u66ff\u6362\u5217\u8868 (\u6ce8\u610f\uff1ax1,x2,x3..\u662f\u5b8f\u7684\u53c2\u6570\uff0c\u6807\u8bc6\u7b26\u548c\u5176\u5de6\u62ec\u5f27\u4e4b\u95f4\u4e0d\u80fd\u6709\u7a7a\u683c)<\/p> \n

\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p> \n

#define MAX(x,y) ((x)>(y)(x):(y))<\/p> \n

i=MAX(j+k,m-n);<\/p> \n

\u66ff\u6362\u4e3a\uff1a<\/p> \n

i=MAX((j+k)>(m-n)(j+k):(m-n));<\/p> \n

#define SI_EX(n) ((n)%2==0)<\/p> \n

if(SI_EX(i)) i++;<\/p> \n

\u66ff\u6362\u4e3a\uff1a<\/p> \n

if(SI_EX((i)%2==0))<\/p> \n

\u901a\u8fc7\u4ee5\u4e0a\u4f8b\u5b50\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u6807\u8bc6\u7b26\u5e26\u53c2\u6570(X1\uff0cX2\uff0cX3.....)\u5728\u66ff\u6362\u65f6\u4f1a\u88ab\u66ff\u6362\u5217\u8868(Y1\uff0cY2\uff0cY3....)\u5bf9\u5e94\u7684\u66ff\u6362\uff0c\u4f46\u662f\u548c\u987a\u5e8f\u65e0\u5173\u3002<\/p> \n

3.\u5b8f\u7684\u7279\u6b8a\u5355\u884c\u5b9a\u4e49<\/strong><\/p> \n

#define A(x) T_##x<\/p> \n

#define B(x) #@x<\/p> \n

#define C(x) #x<\/p> \n

x=1<\/p> \n

\u66ff\u6362\u4e3a\uff1a<\/p> \n

A(1)------> T_1 (T_##x,##\u7b26\u53f7\u662f\u8bb0\u53f7\u7c98\u9ecf\u7b26\u53f7\uff0c\u5c06\u524d\u540e\u7684\u5b57\u7b26\u7c98\u9ecf\u8d77\u6765\u3002)<\/p> \n

B(1)------> '1' ( #@x , #@ \u7b26\u53f7\u4f1a\u5c06\u5b8f\u7684\u53c2\u6570\u8fdb\u884c\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u5316\uff0c\u5e76\u4e14\u52a0\u2018\u2019\u53f7)<\/p> \n

C(1)------> \"1\" ( #x ,#\u7b26\u53f7\u4f1a\u5c06\u5b8f\u7684\u53c2\u6570\u8fdb\u884c\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u5316\uff0c\u5e76\u4e14\u52a0\"\"\u53f7)<\/p> \n

4.define\u7684\u591a\u884c\u5b9a\u4e49<\/strong><\/p> \n

define\u53ef\u4ee5\u66ff\u4ee3\u591a\u884c\u7684\u4ee3\u7801\uff0c\u5728\u6bcf\u4e00\u4e2a\u6362\u884c\u7684\u65f6\u5019\u52a0\u4e0a\u4e00\u4e2a\"\\\"<\/p> \n

#define MAX(X,Y) do { \\<\/p> \n

\u8bed\u53e51; \\<\/p> \n

\u8bed\u53e52; \\<\/p> \n

\/* \u6ce8\u91ca\u7684\u5199\u6cd5 *\/ \\<\/p> \n

} while(0) \/* (no trailing ; ) *\/ \\<\/p> \n

5.\u5728\u5927\u89c4\u6a21\u7684\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u7279\u522b\u662f\u8de8\u5e73\u53f0\u548c\u7cfb\u7edf<\/a>\u7684\u8f6f\u4ef6\u91cc\uff0cdefine\u6700\u91cd\u8981\u7684\u529f\u80fd\u662f\u6761\u4ef6\u7f16\u8bd1\u3002<\/strong><\/p> \n

#ifdef WINDOWS<\/p> \n

......<\/p> \n

......<\/p> \n

#endif<\/p> \n

#ifdef LINUX<\/p> \n

......<\/p> \n

......<\/p> \n

#endif<\/p> \n

\u53ef\u4ee5\u5728\u7f16\u8bd1\u7684\u65f6\u5019\u901a\u8fc7#define\u8bbe\u7f6e\u7f16\u8bd1\u73af\u5883<\/p> \n

6.\u53d6\u6d88\u5b8f<\/strong><\/p> \n

#undef \u6807\u8bc6\u7b26<\/p> \n

7.\u6761\u4ef6\u7f16\u8bd1<\/strong><\/p> \n

#ifdef XXX\u2026(#else) \u2026 #endif<\/p> \n

8.\u9884\u5b9a\u4e49\u5b8f<\/strong><\/p> \n

\u5728C\u8bed\u8a00<\/a>\u4e2d\u6536\u5f55\u4e86\u4e00\u4e9b\u6709\u7528\u7684\u5b8f\uff0c\u8fd9\u4e9b\u5b8f\u662f\u63d0\u4f9b\u5f53\u524d\u7f16\u8bd1\u4fe1\u606f\u7684\u3002<\/p> \n

__LINE__ \u88ab\u7f16\u8bd1\u6587\u4ef6\u7684\u884c\u6570<\/p> \n

(\u6574\u578b)<\/p> \n

__FILE__ \u88ab\u7f16\u8bd1\u6587\u4ef6\u7684\u540d\u5b57 (\u5b57\u7b26\u578b)<\/p> \n

__DATE__ \u7f16\u8bd1\u65e5\u671f (\u5b57\u7b26\u578b)<\/p> \n

__TIME__ \u7f16\u8bd1\u65f6\u95f4 (\u5b57\u7b26\u578b)<\/p> \n

__STDC__ \u5982\u679c\u7f16\u8bd1\u5668\u63a5\u53d7\u6807\u51c6C\uff0c\u90a3\u4e48\u503c\u4e3a1. (\u6574\u578b)<\/p> \n

\u901a\u5e38\u6211\u4eec\u5728\u7f16\u8bd1\u7684\u65f6\u5019\u6211\u4eec\u53ef\u4ee5\u7528\u8fd9\u4e9b\u9884\u5b9a\u4e49\u7684\u5b8f\u6765\u8fdb\u884c\u6392\u9519\uff0c\u4f8b\u5982\uff1a<\/p> \n

\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u5f53\u51fa\u73b0\u9664\u96f6\u7684\u60c5\u51b5\u65f6\u7f16\u8bd1\u5668\u662f\u6ca1\u6709\u63d0\u793a\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u81ea\u5b9a\u4e49\u4e00\u4e2a\u89e3\u51b3\u529e\u6cd5\u3002<\/p> \n

#define CHECKZERO(divisor)\\<\/p> \n

if(divisor==0)\\<\/p> \n

printf(\"***ATTEMPT TO DIVIDE BY ZERO IN LINE %d of file %s ***\\n\",__LINE__,__FILE__);\\<\/p> \n

\u5f15\u7528\u65b9\u6cd5<\/strong><\/p> \n

CHECKZERO(j);<\/p> \n

k=i\/j;<\/p> \n<\/dd>","orderid":"0","title":"\u603b\u7ed3\u4e00\u4e0bC\u8bed\u8a00\u4e2d#define\u7528\u6cd5","smalltitle":"","mid":"0","fname":"c\u8bed\u8a00\u7f16\u7a0b","special_id":"0","bak_id":"0","info":"0","hits":"241","pages":"1","comments":"0","posttime":"2016-12-28 08:15:38","list":"1482884138","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"http:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"\u603b\u7ed3<\/A> \u8a00\u4e2d<\/A> #define<\/A> \u7528\u6cd5<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"14.17.22.31","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"\u603b\u7ed3\u4e00\u4e0bC\u8bed\u8a00\u4e2d#define\u7528\u6cd5","lastview":"1500895866","digg_num":"0","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}