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FILE* fp = fopen(”test.txt”, “r”); assert(fp); //´ò¿ªÎļþ£¬¸øÒ»¸ö¶ÏÑÔ£¬ÕâÊÇÒ»ÖÖºÃϰ¹ß
fseek(fp, 0, SEEK_END); //°ÑÆ«ÒÆÖ¸ÕëÖ¸ÏòÎļþµÄ½áβ
unsigned int nlen = ftell(fp); //·µ»Øµ±Ç°µÄÆ«ÒÆÖ¸Õ룬Ҳ¾ÍÊÇ·µ»Ø¸Õ¸ÕÉ趨µÄÎÄβλÖÃ
fseek(fp, 0, SEEK_SET); //°Ñ¶ÁÐ´Æ«ÒÆÖ¸ÕëÖ¸ÏòÎļþµÄ¿ªÍ·
char* const _psz = (char*)malloc(nlen + 1);
//ÉêÇëÒ»¶Î¶ÑÄڴ棬ÕâÀïµÄ_pszΪʲôҪ±»constÐÞÊÎÄØ£¿
unsigned int size = fread(_psz, sizeof(char), nlen, fp); //¶Á³öÎļþµÄÄÚÈÝ
_psz[size] = ‘\0′; //×¢Ò⣬±ØÐëÒªÔÚ×Ö·û´®µÄ½áβ´¦Ìí¼Ó½áÊø±êÖ¾£¬·ñÔò£¬ºßºß£¡
fclose(fp); //¹Ø±ÕÎļþ
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free(_psz)£» //¹é»¹¶ÑÄÚ´æ
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FILE* fp = fopen(”test.exe”, “rb”); assert(fp);
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fseek(fp, 0, SEEK_END); //»ñÈ¡Îļþ´óС
size_t nlen = ftell(fp);
fseek(fp, 0, SEEK_SET);
unsigned char* const _psz = (unsigned char*)malloc(nlen + 1);
//ÏÔÈ»£¬ÉêÇëµÄÄÚ´æÓ¦¸ÃÊÇBYTE¸ñʽ
fread(_psz, sizeof(unsigned char), nlen, fp); //ÓÉÓÚÊǶþ½øÖƵÄÎļþ£¬ÎÒÃDz»±ØÔÙ¶ÔÄÚ´æ×ö´¦Àí
fclose(fp);
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main(){
int c;
int flag;
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while ((c=getchar())!=EOF){
if (c!=32) {
putchar(c);
flag=0;
}else if(flag==0){
flag=1;
putchar(c);
}

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