{"id":76376,"date":"2026-02-22T11:17:16","date_gmt":"2026-02-22T03:17:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/76376.html"},"modified":"2026-02-22T11:17:16","modified_gmt":"2026-02-22T03:17:16","slug":"linux%e6%a0%87%e5%87%86io%e4%b8%8e%e7%b3%bb%e7%bb%9fio%e5%87%bd%e6%95%b0%e5%85%a8%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/76376.html","title":{"rendered":"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790"},"content":{"rendered":"

\u6807\u51c6 IO \u4e0e\u7cfb\u7edf IO \u51fd\u6570\u6574\u7406（\u542b\u53c2\u6570\u3001\u529f\u80fd\u3001\u533a\u522b）<\/h2>\n

\u672c\u6587\u6863\u57fa\u4e8e Linux \u6807\u51c6 IO \/ \u7cfb\u7edf IO \u5b66\u4e60\u7b14\u8bb0，\u68b3\u7406\u6240\u6709\u6d89\u53ca\u7684\u51fd\u6570，\u6309\u6807\u51c6 IO（\u6587\u4ef6\u64cd\u4f5c \/ \u8bfb\u5199 \/ \u5b9a\u4f4d \/ \u683c\u5f0f\u5316）\u548c\u7cfb\u7edf IO\u5206\u7c7b，\u660e\u786e\u6bcf\u4e2a\u51fd\u6570\u7684\u539f\u578b\u3001\u53c2\u6570\u3001\u6838\u5fc3\u529f\u80fd，\u5e76\u603b\u7ed3\u540c\u7c7b\u51fd\u6570\u3001\u6807\u51c6 \/ \u7cfb\u7edf IO \u51fd\u6570\u7684\u6838\u5fc3\u533a\u522b\u3002<\/p>\n

\u4e00\u3001\u6807\u51c6 IO \u51fd\u6570（<stdio.h>）<\/h3>\n

\u6807\u51c6 IO \u662f C \u6807\u51c6\u5e93\u5b9e\u73b0\u7684\u6587\u4ef6\u64cd\u4f5c\u63a5\u53e3，\u5c01\u88c5\u7f13\u51b2\u533a，\u9075\u5faa POSIX \u6807\u51c6，\u53ef\u8de8\u5e73\u53f0\u4f7f\u7528，\u6838\u5fc3\u56f4\u7ed5FILE*\u6587\u4ef6\u6d41\u6307\u9488\u64cd\u4f5c，Linux \u4e0b\u9ed8\u8ba4\u5bf9\u666e\u901a\u6587\u4ef6\u5168\u7f13\u51b2\u3001\u6807\u51c6\u8f93\u51fa\u884c\u7f13\u51b2\u3001\u6807\u51c6\u9519\u8bef\u65e0\u7f13\u51b2\u3002<\/p>\n

（\u4e00）\u6587\u4ef6\u57fa\u7840\u64cd\u4f5c（\u6253\u5f00 \/ \u5173\u95ed \/ \u5237\u65b0）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n\n
FILE *fopen(const char *pathname, const char *mode);<\/td>\npathname：\u6587\u4ef6\u8def\u5f84 \/ \u540d；mode：\u6253\u5f00\u6a21\u5f0f（r\/r+\/w\/w+\/a\/a+\/rb\/wb）<\/td>\n\u4ee5\u6307\u5b9a\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6，\u5173\u8054\u6587\u4ef6\u6d41<\/td>\n\u6210\u529f：FILE*\u6587\u4ef6\u6d41\u6307\u9488；\u5931\u8d25：NULL<\/td>\n\u6253\u5f00\u5931\u8d25\u4f1a\u8bbe\u7f6eerrno，\u53ef\u901a\u8fc7perror\u6253\u5370；rb\/wb\u4e3a\u4e8c\u8fdb\u5236\u6a21\u5f0f，\u907f\u514d Windows \u6362\u884c\u7b26\u8f6c\u6362<\/td>\n<\/tr>\n
int fclose(FILE *stream);<\/td>\nstream：\u5df2\u6253\u5f00\u7684\u6587\u4ef6\u6d41\u6307\u9488<\/td>\n\u5173\u95ed\u6587\u4ef6\u6d41，\u5237\u65b0\u7f13\u51b2\u533a，\u91ca\u653e\u5806\u5185\u5b58（FILE \u7ed3\u6784\u4f53）<\/td>\n\u6210\u529f：0；\u5931\u8d25：EOF(-1)<\/td>\n\u4e0d\u53ef\u91cd\u590d\u5173\u95ed，\u91cd\u590d\u5173\u95ed\u4f1a\u5bfc\u81f4\u6bb5\u9519\u8bef（\u5806\u5185\u5b58\u91cd\u590d\u91ca\u653e）；\u5173\u95ed\u65f6\u81ea\u52a8\u5237\u65b0\u672a\u5199\u5165\u7684\u7f13\u51b2\u6570\u636e<\/td>\n<\/tr>\n
int fflush(FILE *stream);<\/td>\nstream：\u6587\u4ef6\u6d41\u6307\u9488（NULL \u8868\u793a\u5237\u65b0\u6240\u6709\u8f93\u51fa\u6d41）<\/td>\n\u624b\u52a8\u5237\u65b0\u7f13\u51b2\u533a，\u5c06\u7f13\u51b2\u6570\u636e\u5199\u5165\u5b9e\u9645\u6587\u4ef6<\/td>\n\u6210\u529f：0；\u5931\u8d25：EOF(-1)<\/td>\n\u4ec5\u5bf9\u8f93\u51fa\u6d41 \/ \u66f4\u65b0\u6d41\u6709\u6548；\u6807\u51c6\u8f93\u51fa\u884c\u7f13\u51b2\u4e0b，\\\\n\/ \u7a0b\u5e8f\u7ed3\u675f \/fflush \u90fd\u4f1a\u89e6\u53d1\u5237\u65b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u4e8c）\u5b57\u7b26\u7ea7\u8bfb\u5199（\u5355\u5b57\u7b26\u64cd\u4f5c）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n\n\n\n\n
int fgetc(FILE *stream);<\/td>\nstream：\u5f85\u8bfb\u53d6\u7684\u6587\u4ef6\u6d41<\/td>\n\u4ece\u6587\u4ef6\u6d41\u8bfb\u53d6\u4e00\u4e2a\u5b57\u7b26，\u6587\u4ef6\u5149\u6807\u540e\u79fb 1 \u5b57\u8282<\/td>\n\u6210\u529f：\u5b57\u7b26 ASCII \u7801（unsigned char \u8f6c int）；\u5931\u8d25 \/ \u5230\u672b\u5c3e：EOF(-1)<\/td>\n\u53ef\u901a\u8fc7feof\/ferror\u533a\u5206\u672b\u5c3e\u548c\u9519\u8bef<\/td>\n<\/tr>\n
int getc(FILE *stream);<\/td>\n\u540c fgetc<\/td>\n\u529f\u80fd\u4e0e fgetc \u5b8c\u5168\u4e00\u81f4<\/td>\n\u540c fgetc<\/td>\n\u5b9e\u73b0\u4e3a\u5b8f\u5b9a\u4e49，\u53ef\u80fd\u591a\u6b21\u8ba1\u7b97stream，\u907f\u514d\u4f20\u5165\u5e26\u526f\u4f5c\u7528\u7684\u8868\u8fbe\u5f0f<\/td>\n<\/tr>\n
int getchar(void);<\/td>\n\u65e0\u53c2\u6570<\/td>\n\u4ece\u6807\u51c6\u8f93\u5165 stdin\u8bfb\u53d6\u4e00\u4e2a\u5b57\u7b26<\/td>\n\u540c fgetc<\/td>\n\u7b49\u4ef7\u4e8egetc(stdin)<\/td>\n<\/tr>\n
int fputc(int c, FILE *stream);<\/td>\nc：\u5f85\u5199\u5165\u5b57\u7b26\u7684 ASCII \u7801；stream：\u76ee\u6807\u6587\u4ef6\u6d41<\/td>\n\u5411\u6587\u4ef6\u6d41\u5199\u5165\u4e00\u4e2a\u5b57\u7b26，\u5149\u6807\u540e\u79fb 1 \u5b57\u8282<\/td>\n\u6210\u529f：\u5199\u5165\u7684\u5b57\u7b26 ASCII \u7801；\u5931\u8d25：EOF(-1)<\/td>\n\u8ffd\u52a0\u6a21\u5f0f（a\/a+）\u4e0b，\u59cb\u7ec8\u5199\u5165\u6587\u4ef6\u672b\u5c3e<\/td>\n<\/tr>\n
int putc(int c, FILE *stream);<\/td>\n\u540c fputc<\/td>\n\u529f\u80fd\u4e0e fputc \u5b8c\u5168\u4e00\u81f4<\/td>\n\u540c fputc<\/td>\n\u5b9e\u73b0\u4e3a\u5b8f\u5b9a\u4e49<\/td>\n<\/tr>\n
int putchar(int c);<\/td>\nc：\u5f85\u5199\u5165\u5b57\u7b26\u7684 ASCII \u7801<\/td>\n\u5411\u6807\u51c6\u8f93\u51fa stdout\u5199\u5165\u4e00\u4e2a\u5b57\u7b26<\/td>\n\u540c fputc<\/td>\n\u7b49\u4ef7\u4e8eputc(c, stdout)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u4e09）\u884c\u7ea7\u8bfb\u5199（\u6309\u884c\u64cd\u4f5c）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n\n
char *fgets(char *s, int n, FILE *stream);<\/td>\ns：\u5b58\u50a8\u6570\u636e\u7684\u7f13\u51b2\u533a；n：\u7f13\u51b2\u533a\u5927\u5c0f；stream：\u5f85\u8bfb\u53d6\u6587\u4ef6\u6d41<\/td>\n\u4ece\u6587\u4ef6\u6d41\u8bfb\u53d6\u4e00\u884c\u6570\u636e，\u6700\u591a\u8bfbn-1\u4e2a\u5b57\u7b26（\u7559 1 \u4f4d\u5b58\\\\0），\u9047\\\\n\/EOF\/ \u6ee1\u7f13\u51b2\u533a\u505c\u6b62，\u4fdd\u7559\\\\n<\/td>\n\u6210\u529f：\u7f13\u51b2\u533a\u6307\u9488s；\u5931\u8d25 \/ \u5230\u672b\u5c3e\u4e14\u65e0\u6570\u636e：NULL<\/td>\n\u53ef\u901a\u8fc7feof\/ferror\u533a\u5206\u672b\u5c3e\u548c\u9519\u8bef；\u89e3\u51b3\u4e86gets\u7684\u7f13\u51b2\u533a\u6ea2\u51fa\u95ee\u9898<\/td>\n<\/tr>\n
int fputs(const char *s, FILE *stream);<\/td>\ns：\u5f85\u5199\u5165\u7684\u5b57\u7b26\u4e32；stream：\u76ee\u6807\u6587\u4ef6\u6d41<\/td>\n\u5411\u6587\u4ef6\u6d41\u5199\u5165\u5b57\u7b26\u4e32，\u4e0d\u5199\u5165\u672b\u5c3e\u7684\\\\0<\/td>\n\u6210\u529f：\u975e\u8d1f\u6574\u6570；\u5931\u8d25：EOF(-1)<\/td>\n\u4e0d\u4f1a\u81ea\u52a8\u6dfb\u52a0\\\\n，\u9700\u624b\u52a8\u5728\u5b57\u7b26\u4e32\u4e2d\u52a0\u5165<\/td>\n<\/tr>\n
int puts(const char *s);<\/td>\ns：\u5f85\u5199\u5165\u7684\u5b57\u7b26\u4e32<\/td>\n\u5411\u6807\u51c6\u8f93\u51fa stdout\u5199\u5165\u5b57\u7b26\u4e32，\u81ea\u52a8\u6dfb\u52a0\\\\n<\/td>\n\u6210\u529f：\u975e\u8d1f\u6574\u6570；\u5931\u8d25：EOF(-1)<\/td>\n\u7b49\u4ef7\u4e8efputs(s, stdout) + putchar('\\\\n')<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u56db）\u5757\u7ea7\u8bfb\u5199（\u6309\u6570\u636e\u5757\u64cd\u4f5c，\u9ad8\u6548）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n
size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);<\/td>\nptr：\u5b58\u50a8\u6570\u636e\u7684\u7f13\u51b2\u533a；size：\u5355\u4e2a\u6570\u636e\u5757\u7684\u5b57\u8282\u6570；nmemb：\u8981\u8bfb\u53d6\u7684\u5757\u6570；stream：\u5f85\u8bfb\u53d6\u6587\u4ef6\u6d41<\/td>\n\u4ece\u6587\u4ef6\u6d41\u8bfb\u53d6nmemb \u4e2a size \u5b57\u8282\u7684\u5757，\u603b\u8bfb\u53d6\u5b57\u8282\u6570 = size\u00d7nmemb<\/td>\n\u6210\u529f：\u5b9e\u9645\u8bfb\u53d6\u7684\u5757\u6570；\u5931\u8d25 \/ \u5230\u672b\u5c3e：\u5c0f\u4e8e nmemb \u6216 0<\/td>\n\u4e8c\u8fdb\u5236\u6a21\u5f0f\u4e0b\u4f7f\u7528\u66f4\u9ad8\u6548；\u8fd4\u56de\u503c < nmemb \u65f6，\u9700feof(stream)\u5224\u65ad\u662f\u5426\u5230\u672b\u5c3e，ferror(stream)\u5224\u65ad\u662f\u5426\u51fa\u9519<\/td>\n<\/tr>\n
size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);<\/td>\nptr：\u5f85\u5199\u5165\u6570\u636e\u7684\u7f13\u51b2\u533a；\u5176\u4f59\u540c fread<\/td>\n\u5411\u6587\u4ef6\u6d41\u5199\u5165nmemb \u4e2a size \u5b57\u8282\u7684\u5757，\u603b\u5199\u5165\u5b57\u8282\u6570 = size\u00d7nmemb<\/td>\n\u6210\u529f：\u5b9e\u9645\u5199\u5165\u7684\u5757\u6570；\u5931\u8d25：\u5c0f\u4e8e nmemb \u6216 0<\/td>\n\u4e8c\u8fdb\u5236\u6a21\u5f0f\u4e0b\u53ef\u62f7\u8d1d\u4efb\u610f\u6587\u4ef6（\u6587\u672c \/ \u56fe\u7247 \/ \u89c6\u9891）；\u5199\u5165\u5931\u8d25\u4ec5\u56e0 IO \u9519\u8bef，\u65e0 \u201c\u5230\u672b\u5c3e\u201d \u60c5\u51b5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u4e94）\u6587\u4ef6\u5b9a\u4f4d（\u5149\u6807 \/ \u504f\u79fb\u91cf\u64cd\u4f5c）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n\n
int fseek(FILE *stream, long offset, int whence);<\/td>\nstream：\u6587\u4ef6\u6d41；offset：\u504f\u79fb\u91cf（\u53ef\u6b63\u53ef\u8d1f）；whence：\u57fa\u51c6\u70b9（SEEK_SET \/ \u5f00\u5934\u3001SEEK_CUR \/ \u5f53\u524d\u3001SEEK_END \/ \u672b\u5c3e）<\/td>\n\u8bbe\u7f6e\u6587\u4ef6\u6d41\u7684\u5149\u6807\u504f\u79fb\u91cf<\/td>\n\u6210\u529f：0；\u5931\u8d25：\u975e 0<\/td>\n\u4e8c\u8fdb\u5236\u6587\u4ef6：offset \u53ef\u4efb\u610f\u8bbe\u7f6e；\u6587\u672c\u6587\u4ef6：offset \u53ea\u80fd\u4e3a 0 \u6216 ftell \u8fd4\u56de\u503c，\u4e14 whence \u4e3a SEEK_SET<\/td>\n<\/tr>\n
long int ftell(FILE *stream);<\/td>\nstream：\u6587\u4ef6\u6d41<\/td>\n\u83b7\u53d6\u5f53\u524d\u5149\u6807\u76f8\u5bf9\u4e8e\u6587\u4ef6\u5f00\u5934\u7684\u504f\u79fb\u91cf（\u5b57\u8282\u6570）<\/td>\n\u6210\u529f：\u504f\u79fb\u91cf（\u957f\u6574\u578b）；\u5931\u8d25：-1L<\/td>\n\u7ed3\u5408fseek(fp, 0, SEEK_END)\u53ef\u5feb\u901f\u83b7\u53d6\u6587\u4ef6\u5927\u5c0f<\/td>\n<\/tr>\n
void rewind(FILE *stream);<\/td>\nstream：\u6587\u4ef6\u6d41<\/td>\n\u5c06\u5149\u6807\u91cd\u7f6e\u5230\u6587\u4ef6\u5f00\u5934，\u540c\u65f6\u6e05\u9664\u6587\u4ef6\u7684\u9519\u8bef \/ \u7ed3\u675f\u6807\u5fd7<\/td>\n\u65e0\u8fd4\u56de\u503c<\/td>\n\u7b49\u4ef7\u4e8efseek(stream, 0L, SEEK_SET) + clearerr(stream)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u516d）\u9519\u8bef \/ \u7ed3\u675f\u5224\u65ad<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n\n
int feof(FILE *stream);<\/td>\nstream：\u6587\u4ef6\u6d41<\/td>\n\u5224\u65ad\u6587\u4ef6\u6d41\u662f\u5426\u5230\u8fbe\u672b\u5c3e（EOF）<\/td>\n\u662f：\u975e 0 \u503c；\u5426：0<\/td>\n\u4ec5\u5728\u8bfb\u64cd\u4f5c\u540e\u5224\u65ad\u624d\u6709\u610f\u4e49，\u672a\u8bfb\u64cd\u4f5c\u65f6\u9ed8\u8ba4\u8fd4\u56de 0<\/td>\n<\/tr>\n
int ferror(FILE *stream);<\/td>\nstream：\u6587\u4ef6\u6d41<\/td>\n\u5224\u65ad\u6587\u4ef6\u6d41\u662f\u5426\u53d1\u751f\u8bfb\u5199\u9519\u8bef<\/td>\n\u662f：\u975e 0 \u503c；\u5426：0<\/td>\n\u9519\u8bef\u6807\u5fd7\u9700\u901a\u8fc7clearerr\u6e05\u9664<\/td>\n<\/tr>\n
void clearerr(FILE *stream);<\/td>\nstream：\u6587\u4ef6\u6d41<\/td>\n\u6e05\u9664\u6587\u4ef6\u6d41\u7684\u7ed3\u675f\u6807\u5fd7（feof）\u548c\u9519\u8bef\u6807\u5fd7（ferror）<\/td>\n\u65e0\u8fd4\u56de\u503c<\/td>\n\u91cd\u7f6e\u540e\u53ef\u91cd\u65b0\u5224\u65ad\u6587\u4ef6\u72b6\u6001<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u4e03）\u683c\u5f0f\u5316\u8bfb\u5199（\u6309\u6307\u5b9a\u683c\u5f0f\u8f93\u5165\u8f93\u51fa）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n\n\n
int fprintf(FILE *stream, const char *format, …);<\/td>\nstream：\u76ee\u6807\u6587\u4ef6\u6d41；format：\u683c\u5f0f\u5316\u5b57\u7b26\u4e32；…：\u53ef\u53d8\u53c2\u6570<\/td>\n\u5411\u6307\u5b9a\u6587\u4ef6\u6d41\u5199\u5165\u683c\u5f0f\u5316\u6570\u636e<\/td>\n\u6210\u529f：\u5199\u5165\u7684\u5b57\u7b26\u6570；\u5931\u8d25：EOF(-1)<\/td>\n\u6807\u51c6\u8f93\u51fa\u7248\u4e3aprintf，\u7b49\u4ef7\u4e8efprintf(stdout, format, …)<\/td>\n<\/tr>\n
int fscanf(FILE *stream, const char *format, …);<\/td>\nstream：\u5f85\u8bfb\u53d6\u6587\u4ef6\u6d41；\u5176\u4f59\u540c fprintf<\/td>\n\u4ece\u6307\u5b9a\u6587\u4ef6\u6d41\u8bfb\u53d6\u683c\u5f0f\u5316\u6570\u636e\u5230\u53d8\u91cf<\/td>\n\u6210\u529f：\u6210\u529f\u5339\u914d\u7684\u53c2\u6570\u4e2a\u6570；\u5931\u8d25 \/ \u5230\u672b\u5c3e：EOF(-1)<\/td>\n\u6807\u51c6\u8f93\u5165\u7248\u4e3ascanf，\u7b49\u4ef7\u4e8efscanf(stdin, format, …)；\u4f1a\u81ea\u52a8\u8df3\u8fc7\u7a7a\u767d\u7b26（\u7a7a\u683c \/ \u6362\u884c \/ Tab）<\/td>\n<\/tr>\n
int sprintf(char *s, const char *format, …);<\/td>\ns：\u5b58\u50a8\u683c\u5f0f\u5316\u6570\u636e\u7684\u7f13\u51b2\u533a；\u5176\u4f59\u540c fprintf<\/td>\n\u5411\u5185\u5b58\u7f13\u51b2\u533a\u5199\u5165\u683c\u5f0f\u5316\u6570\u636e，\u81ea\u52a8\u6dfb\u52a0\\\\0<\/td>\n\u6210\u529f：\u5199\u5165\u7684\u5b57\u7b26\u6570（\u4e0d\u542b\\\\0）；\u5931\u8d25：\u8d1f\u6570<\/td>\n\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u98ce\u9669，\u63a8\u8350\u4f7f\u7528snprintf<\/td>\n<\/tr>\n
int snprintf(char *s, size_t n, const char *format, …);<\/td>\nn：\u7f13\u51b2\u533a\u6700\u5927\u5b57\u8282\u6570；\u5176\u4f59\u540c sprintf<\/td>\n\u5411\u7f13\u51b2\u533a\u5199\u5165\u683c\u5f0f\u5316\u6570\u636e，\u6700\u591a\u5199 n-1 \u4e2a\u5b57\u7b26，\u81ea\u52a8\u52a0\\\\0<\/td>\n\u6210\u529f：\u9884\u671f\u5199\u5165\u7684\u5b57\u7b26\u6570；\u5931\u8d25：\u8d1f\u6570<\/td>\n\u5b89\u5168\u7248 sprintf，\u907f\u514d\u7f13\u51b2\u533a\u6ea2\u51fa；\u82e5\u8fd4\u56de\u503c >=n，\u8bf4\u660e\u6570\u636e\u88ab\u622a\u65ad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\u3001\u7cfb\u7edf IO \u51fd\u6570（Linux \u5185\u6838\u63d0\u4f9b，\u65e0\u7f13\u51b2\u533a）<\/h3>\n

\u7cfb\u7edf IO \u662f Linux \u5185\u6838\u76f4\u63a5\u63d0\u4f9b\u7684\u6587\u4ef6\u64cd\u4f5c\u63a5\u53e3，\u65e0\u5c01\u88c5\u7f13\u51b2\u533a，\u57fa\u4e8e ** \u6587\u4ef6\u63cf\u8ff0\u7b26（fd，\u975e\u8d1f\u6574\u6570）** \u64cd\u4f5c，\u4ec5\u9002\u7528\u4e8e Linux\/Unix \u7cfb\u7edf，\u53ef\u64cd\u4f5c\u6240\u6709\u7c7b\u578b\u6587\u4ef6（\u666e\u901a\u6587\u4ef6 \/ \u8bbe\u5907 \/ \u5957\u63a5\u5b57 \/ \u94fe\u63a5），\u5b9e\u65f6\u6027\u9ad8，\u9002\u5408\u786c\u4ef6\u8bbe\u5907\u4ea4\u4e92\u3002<\/p>\n

（\u4e00）\u6587\u4ef6\u57fa\u7840\u64cd\u4f5c（\u6253\u5f00 \/ \u5173\u95ed）<\/h4>\n\n\n\n\n\n
\u51fd\u6570\u539f\u578b<\/td>\n\u6838\u5fc3\u53c2\u6570\u8bf4\u660e<\/td>\n\u529f\u80fd<\/td>\n\u8fd4\u56de\u503c<\/td>\n\u5173\u952e\u5907\u6ce8<\/td>\n<\/tr>\n
int open(const char *pathname, int flags); int open(const char *pathname, int flags, mode_t mode);<\/td>\npathname：\u6587\u4ef6\u8def\u5f84 \/ \u540d；flags：\u6253\u5f00\u6807\u5fd7（O_RDONLY\/O_WRONLY\/O_RDWR\/O_CREAT\/O_TRUNC\/O_APPEND）；mode：\u6587\u4ef6\u6743\u9650（\u516b\u8fdb\u5236，\u5982 0644，\u4ec5 O_CREAT \u65f6\u6709\u6548）<\/td>\n\u6253\u5f00 \/ \u521b\u5efa\u6587\u4ef6，\u5206\u914d\u6587\u4ef6\u63cf\u8ff0\u7b26<\/td>\n\u6210\u529f：\u672a\u4f7f\u7528\u7684\u6700\u5c0f\u975e\u8d1f\u6574\u6570（fd）；\u5931\u8d25：-1<\/td>\n<\/td>\n<\/tr>\n
int close(int fd);<\/td>\nfd：\u6587\u4ef6\u63cf\u8ff0\u7b26<\/td>\n\u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7b26，\u91ca\u653e\u5185\u6838\u6587\u4ef6\u8d44\u6e90<\/td>\n\u6587\u4ef6\u8d44\u6e90\u6210\u529f：0；\u5931\u8d25：-1<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u4e8c）\u5757\u7ea7\u8bfb\u5199（\u4ec5\u652f\u6301\u6570\u636e\u5757\u64cd\u4f5c）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n\n
ssize_t read(int fd, void *buf, size_t count);<\/td>\nfd：\u6587\u4ef6\u63cf\u8ff0\u7b26；buf：\u5b58\u50a8\u6570\u636e\u7684\u7f13\u51b2\u533a；count：\u671f\u671b\u8bfb\u53d6\u7684\u6700\u5927\u5b57\u8282\u6570<\/td>\n\u4ece fd \u6307\u5411\u7684\u6587\u4ef6\u8bfb\u53d6\u6700\u591a count \u5b57\u8282\u5230\u7f13\u51b2\u533a<\/td>\n\u6210\u529f：\u5b9e\u9645\u8bfb\u53d6\u7684\u5b57\u8282\u6570；\u5931\u8d25：-1；\u5230\u672b\u5c3e：0<\/td>\n\u65e0\u7f13\u51b2\u533a，\u6bcf\u6b21\u8c03\u7528\u90fd\u662f\u7cfb\u7edf\u8c03\u7528；\u8bfb\u53d6\u666e\u901a\u6587\u4ef6\u65f6，\u8fd4\u56de\u503c < count \u5373\u5230\u672b\u5c3e<\/td>\n<\/tr>\n
ssize_t write(int fd, const void *buf, size_t count);<\/td>\nfd：\u6587\u4ef6\u63cf\u8ff0\u7b26；buf：\u5f85\u5199\u5165\u6570\u636e\u7684\u7f13\u51b2\u533a；count：\u671f\u671b\u5199\u5165\u7684\u5b57\u8282\u6570<\/td>\n\u5411 fd \u6307\u5411\u7684\u6587\u4ef6\u5199\u5165\u6700\u591a count \u5b57\u8282\u4ece\u7f13\u51b2\u533a<\/td>\n\u6210\u529f：\u5b9e\u9645\u5199\u5165\u7684\u5b57\u8282\u6570；\u5931\u8d25：-1<\/td>\n\u8ffd\u52a0\u6a21\u5f0f（O_APPEND）\u4e0b，\u5199\u5165\u524d\u81ea\u52a8\u5c06\u504f\u79fb\u91cf\u79fb\u5230\u6587\u4ef6\u672b\u5c3e；\u5199\u5165\u78c1\u76d8\u65f6\u53ef\u80fd\u56e0\u78c1\u76d8\u6ee1\u5bfc\u81f4\u8fd4\u56de\u503c < count<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u4e09）\u6587\u4ef6\u5b9a\u4f4d（\u504f\u79fb\u91cf\u64cd\u4f5c）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n
off_t lseek(int fd, off_t offset, int whence);<\/td>\nfd：\u6587\u4ef6\u63cf\u8ff0\u7b26；offset：\u504f\u79fb\u91cf（\u53ef\u6b63\u53ef\u8d1f）；whence：\u57fa\u51c6\u70b9（SEEK_SET\/SEEK_CUR\/SEEK_END，\u540c fseek）<\/td>\n\u8bbe\u7f6e\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u504f\u79fb\u91cf<\/td>\n\u6210\u529f：\u65b0\u504f\u79fb\u91cf（\u76f8\u5bf9\u4e8e\u6587\u4ef6\u5f00\u5934\u7684\u5b57\u8282\u6570）；\u5931\u8d25：(off_t)-1<\/td>\n\u53ef\u901a\u8fc7lseek(fd, 0, SEEK_END)\u5feb\u901f\u83b7\u53d6\u6587\u4ef6\u5927\u5c0f；\u652f\u6301\u5c06\u504f\u79fb\u91cf\u8bbe\u4e3a\u6587\u4ef6\u672b\u5c3e\u4e4b\u540e（\u5f62\u6210 \u201c\u6587\u4ef6\u7a7a\u6d1e\u201d）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（\u56db）\u65f6\u95f4\u51fd\u6570（\u8f85\u52a9\u4f5c\u4e1a，<time.h>）<\/h4>\n\n\u51fd\u6570\u539f\u578b\u6838\u5fc3\u53c2\u6570\u8bf4\u660e\u529f\u80fd\u8fd4\u56de\u503c\u5173\u952e\u5907\u6ce8<\/tr>\n\n\n
time_t time(time_t *tloc);<\/td>\ntloc：\u5b58\u50a8\u65f6\u95f4\u7684\u6307\u9488（\u4e00\u822c\u4f20 NULL）<\/td>\n\u83b7\u53d6\u4ece1970-01-01 00:00:00 UTC\u5230\u5f53\u524d\u7684\u79d2\u6570（\u65f6\u95f4\u6233）<\/td>\n\u6210\u529f：\u65f6\u95f4\u6233（time_t \u4e3a\u957f\u6574\u578b）；\u5931\u8d25：(time_t)-1<\/td>\n\u9700\u7ed3\u5408localtime\/strftime\u8f6c\u6362\u4e3a\u672c\u5730\u65f6\u95f4\u548c\u6307\u5b9a\u683c\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e09\u3001\u6838\u5fc3\u533a\u522b\u603b\u7ed3<\/h3>\n

（\u4e00）\u540c\u7c7b\u6807\u51c6 IO \u51fd\u6570\u7684\u533a\u522b<\/h4>\n
    \n
  • fgetc\/getc\/getchar：\u529f\u80fd\u4e00\u81f4，fgetc \u662f\u51fd\u6570，getc \u662f\u5b8f，getchar \u662f\u9488\u5bf9 stdin \u7684\u5c01\u88c5；<\/li>\n
  • fputc\/putc\/putchar：\u529f\u80fd\u4e00\u81f4，fputc \u662f\u51fd\u6570，putc \u662f\u5b8f，putchar \u662f\u9488\u5bf9 stdout \u7684\u5c01\u88c5；<\/li>\n
  • fgets\/gets：fgets \u5b89\u5168（\u6307\u5b9a\u7f13\u51b2\u533a\u5927\u5c0f），\u4fdd\u7559\\\\n；gets \u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa，\u5df2\u88ab\u5e9f\u5f03；<\/li>\n
  • fputs\/puts：fputs \u4e0d\u81ea\u52a8\u52a0\\\\n，\u53ef\u6307\u5b9a\u6587\u4ef6\u6d41；puts \u81ea\u52a8\u52a0\\\\n，\u4ec5\u8f93\u51fa\u5230 stdout；<\/li>\n
  • sprintf\/snprintf：snprintf \u662f\u5b89\u5168\u7248，\u6307\u5b9a\u7f13\u51b2\u533a\u5927\u5c0f，\u907f\u514d\u6ea2\u51fa；sprintf \u65e0\u5927\u5c0f\u9650\u5236，\u6613\u6ea2\u51fa；<\/li>\n
  • printf\/fprintf：printf \u662f fprintf \u9488\u5bf9 stdout \u7684\u5c01\u88c5，fprintf \u53ef\u6307\u5b9a\u4efb\u610f\u6587\u4ef6\u6d41\u3002<\/li>\n<\/ul>\n

    （\u4e8c）\u6807\u51c6 IO \u4e0e\u7cfb\u7edf IO \u7684\u6838\u5fc3\u533a\u522b<\/h4>\n\n\u5bf9\u6bd4\u7ef4\u5ea6\u6807\u51c6 IO（C \u5e93）\u7cfb\u7edf IO（Linux \u5185\u6838）<\/tr>\n\n\n\n\n\n\n\n\n\n
    \u64cd\u4f5c\u53e5\u67c4<\/td>\nFILE*\u6587\u4ef6\u6d41\u6307\u9488（\u7ed3\u6784\u4f53，\u5c01\u88c5 fd \u548c\u7f13\u51b2\u533a）<\/td>\n\u6587\u4ef6\u63cf\u8ff0\u7b26fd（\u975e\u8d1f\u6574\u6570，\u5185\u6838 fd_array \u6570\u7ec4\u4e0b\u6807）<\/td>\n<\/tr>\n
    \u7f13\u51b2\u533a<\/td>\n\u5c01\u88c5\u7528\u6237\u6001\u7f13\u51b2\u533a（\u5168\u7f13\u51b2 \/ \u884c\u7f13\u51b2 \/ \u65e0\u7f13\u51b2），\u51cf\u5c11\u7cfb\u7edf\u8c03\u7528<\/td>\n\u65e0\u7528\u6237\u6001\u7f13\u51b2\u533a，\u6bcf\u6b21\u64cd\u4f5c\u90fd\u662f\u76f4\u63a5\u7cfb\u7edf\u8c03\u7528<\/td>\n<\/tr>\n
    \u8de8\u5e73\u53f0\u6027<\/td>\n\u9075\u5faa POSIX\/ANSI C \u6807\u51c6，\u53ef\u5728 Linux\/Windows \u7b49\u8de8\u5e73\u53f0\u4f7f\u7528<\/td>\n\u4ec5\u9002\u7528\u4e8e Linux\/Unix \u7c7b\u7cfb\u7edf，\u4e0e\u5185\u6838\u5f3a\u7ed1\u5b9a<\/td>\n<\/tr>\n
    \u652f\u6301\u6587\u4ef6\u7c7b\u578b<\/td>\n\u4ec5\u9002\u7528\u4e8e\u666e\u901a\u6587\u4ef6 \/ \u6807\u51c6\u8f93\u5165\u8f93\u51fa<\/td>\n\u652f\u6301\u6240\u6709 Linux \u6587\u4ef6\u7c7b\u578b（\u666e\u901a \/ \u8bbe\u5907 \/ \u5957\u63a5\u5b57 \/ \u94fe\u63a5 \/ \u7ba1\u9053）<\/td>\n<\/tr>\n
    \u6548\u7387<\/td>\n\u666e\u901a\u6587\u4ef6\u64cd\u4f5c\u6548\u7387\u9ad8（\u7f13\u51b2\u533a\u51cf\u5c11\u7cfb\u7edf\u8c03\u7528）<\/td>\n\u666e\u901a\u6587\u4ef6\u64cd\u4f5c\u6548\u7387\u4f4e（\u9891\u7e41\u7cfb\u7edf\u8c03\u7528），\u4f46\u786c\u4ef6\u8bbe\u5907\u5b9e\u65f6\u6027\u9ad8<\/td>\n<\/tr>\n
    \u5185\u5b58\u7ba1\u7406<\/td>\nfopen \u7533\u8bf7\u5806\u5185\u5b58（FILE \u7ed3\u6784\u4f53），fclose \u91ca\u653e，\u91cd\u590d\u5173\u95ed\u6bb5\u9519\u8bef<\/td>\nopen\/close \u65e0\u5806\u5185\u5b58\u64cd\u4f5c，\u4ec5\u64cd\u4f5c\u5185\u6838\u8d44\u6e90，\u91cd\u590d\u5173\u95ed\u65e0\u9519\u8bef<\/td>\n<\/tr>\n
    \u51fd\u6570\u4e30\u5bcc\u5ea6<\/td>\n\u51fd\u6570\u4e30\u5bcc（\u5b57\u7b26 \/ \u884c \/ \u5757 \/ \u683c\u5f0f\u5316\u8bfb\u5199，\u5b9a\u4f4d \/ \u5237\u65b0 \/ \u9519\u8bef\u5224\u65ad）<\/td>\n\u51fd\u6570\u7b80\u6d01（\u4ec5\u5757\u8bfb\u5199 \/ \u5b9a\u4f4d \/ \u6253\u5f00\u5173\u95ed），\u65e0\u683c\u5f0f\u5316 \/ \u5b57\u7b26 \/ \u884c\u64cd\u4f5c<\/td>\n<\/tr>\n
    \u5934\u6587\u4ef6<\/td>\n\u6838\u5fc3 <**stdio.h**>，\u65f6\u95f4\u51fd\u6570 <time.h><\/td>\n\u6838\u5fc3 <**unistd.h**>\u3001<sys\/types.h>\u3001<fcntl.h><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    （\u4e09）fread\/fwrite \u4e0e read\/write \u7684\u5173\u952e\u533a\u522b<\/h4>\n
      \n
    • \u8fd4\u56de\u503c：fread\/fwrite \u8fd4\u56de\u5b9e\u9645\u64cd\u4f5c\u7684\u5757\u6570，read\/write \u8fd4\u56de\u5b9e\u9645\u64cd\u4f5c\u7684\u5b57\u8282\u6570；<\/li>\n
    • \u9519\u8bef\u5224\u65ad：fread\/fwrite \u8fd4\u56de\u503c < \u6307\u5b9a\u503c\u65f6，\u9700feof\/ferror\u533a\u5206\u672b\u5c3e \/ \u9519\u8bef；read\/write \u8fd4\u56de – 1 \u4e3a\u9519\u8bef，0 \u4e3a\u672b\u5c3e；<\/li>\n
    • \u7f13\u51b2\u533a：fread\/fwrite \u57fa\u4e8e\u7528\u6237\u6001\u7f13\u51b2\u533a，\u5e95\u5c42\u8c03\u7528 read\/write；read\/write \u65e0\u7f13\u51b2\u533a，\u76f4\u63a5\u64cd\u4f5c\u5185\u6838；<\/li>\n
    • \u8de8\u5e73\u53f0：fread\/fwrite \u53ef\u8de8\u5e73\u53f0，read\/write \u4ec5 Linux\/Unix \u53ef\u7528\u3002<\/li>\n<\/ul>\n

      （\u56db）fseek\/ftell \u4e0e lseek \u7684\u5173\u952e\u533a\u522b<\/h4>\n
        \n
      • \u64cd\u4f5c\u53e5\u67c4：fseek\/ftell \u64cd\u4f5cFILE*，lseek \u64cd\u4f5cfd；<\/li>\n
      • \u53c2\u6570 \/ \u8fd4\u56de\u503c\u7c7b\u578b：fseek \u7684 offset \u662flong，ftell \u8fd4\u56delong int；lseek \u7684 offset \u662foff_t，\u8fd4\u56deoff_t（64 \u4f4d\u7cfb\u7edf\u652f\u6301\u66f4\u5927\u504f\u79fb）；<\/li>\n
      • \u6587\u672c\u6587\u4ef6\u9650\u5236：fseek \u5bf9\u6587\u672c\u6587\u4ef6\u504f\u79fb\u91cf\u6709\u9650\u5236（\u4ec5 0\/ftell \u8fd4\u56de\u503c）；lseek \u5bf9\u6587\u672c \/ \u4e8c\u8fdb\u5236\u6587\u4ef6\u65e0\u9650\u5236；<\/li>\n
      • \u6587\u4ef6\u7a7a\u6d1e：lseek \u652f\u6301\u5c06\u504f\u79fb\u91cf\u8bbe\u4e3a\u6587\u4ef6\u672b\u5c3e\u4e4b\u540e，\u5f62\u6210 \u201c\u6587\u4ef6\u7a7a\u6d1e\u201d；fseek \u4e0d\u63a8\u8350\u6b64\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        \u6807\u51c6 IO \u4e0e\u7cfb\u7edf IO \u51fd\u6570\u6574\u7406（\u542b\u53c2\u6570\u3001\u529f\u80fd\u3001\u533a\u522b）\u672c\u6587\u6863\u57fa\u4e8e Linux \u6807\u51c6 IO \/ \u7cfb\u7edf IO \u5b66\u4e60\u7b14\u8bb0，\u68b3\u7406\u6240\u6709\u6d89\u53ca\u7684\u51fd\u6570，\u6309\u6807\u51c6 IO（\u6587\u4ef6\u64cd\u4f5c \/ \u8bfb\u5199 \/ \u5b9a\u4f4d \/ \u683c\u5f0f\u5316）\u548c\u7cfb\u7edf IO\u5206\u7c7b，\u660e\u786e\u6bcf\u4e2a\u51fd\u6570\u7684\u539f\u578b\u3001\u53c2\u6570\u3001\u6838\u5fc3\u529f\u80fd，\u5e76\u603b\u7ed3\u540c\u7c7b\u51fd\u6570\u3001\u6807\u51c6 \/ \u7cfb\u7edf IO \u51fd\u6570\u7684\u6838\u5fc3\u533a\u522b\u3002\u4e00\u3001\u6807\u51c6 IO \u51fd\u6570（&#xff0<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43],"topic":[],"class_list":["post-76376","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux","tag-43"],"yoast_head":"\nLinux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/76376.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6807\u51c6 IO \u4e0e\u7cfb\u7edf IO \u51fd\u6570\u6574\u7406（\u542b\u53c2\u6570\u3001\u529f\u80fd\u3001\u533a\u522b）\u672c\u6587\u6863\u57fa\u4e8e Linux \u6807\u51c6 IO \/ \u7cfb\u7edf IO \u5b66\u4e60\u7b14\u8bb0，\u68b3\u7406\u6240\u6709\u6d89\u53ca\u7684\u51fd\u6570，\u6309\u6807\u51c6 IO（\u6587\u4ef6\u64cd\u4f5c \/ \u8bfb\u5199 \/ \u5b9a\u4f4d \/ \u683c\u5f0f\u5316）\u548c\u7cfb\u7edf IO\u5206\u7c7b，\u660e\u786e\u6bcf\u4e2a\u51fd\u6570\u7684\u539f\u578b\u3001\u53c2\u6570\u3001\u6838\u5fc3\u529f\u80fd，\u5e76\u603b\u7ed3\u540c\u7c7b\u51fd\u6570\u3001\u6807\u51c6 \/ \u7cfb\u7edf IO \u51fd\u6570\u7684\u6838\u5fc3\u533a\u522b\u3002\u4e00\u3001\u6807\u51c6 IO \u51fd\u6570（&#xff0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/76376.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-22T03:17:16+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/76376.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/76376.html\",\"name\":\"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-02-22T03:17:16+00:00\",\"dateModified\":\"2026-02-22T03:17:16+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/76376.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/76376.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/76376.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/76376.html","og_locale":"zh_CN","og_type":"article","og_title":"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6807\u51c6 IO \u4e0e\u7cfb\u7edf IO \u51fd\u6570\u6574\u7406（\u542b\u53c2\u6570\u3001\u529f\u80fd\u3001\u533a\u522b）\u672c\u6587\u6863\u57fa\u4e8e Linux \u6807\u51c6 IO \/ \u7cfb\u7edf IO \u5b66\u4e60\u7b14\u8bb0，\u68b3\u7406\u6240\u6709\u6d89\u53ca\u7684\u51fd\u6570，\u6309\u6807\u51c6 IO（\u6587\u4ef6\u64cd\u4f5c \/ \u8bfb\u5199 \/ \u5b9a\u4f4d \/ \u683c\u5f0f\u5316）\u548c\u7cfb\u7edf IO\u5206\u7c7b，\u660e\u786e\u6bcf\u4e2a\u51fd\u6570\u7684\u539f\u578b\u3001\u53c2\u6570\u3001\u6838\u5fc3\u529f\u80fd，\u5e76\u603b\u7ed3\u540c\u7c7b\u51fd\u6570\u3001\u6807\u51c6 \/ \u7cfb\u7edf IO \u51fd\u6570\u7684\u6838\u5fc3\u533a\u522b\u3002\u4e00\u3001\u6807\u51c6 IO \u51fd\u6570（&#xff0","og_url":"https:\/\/www.wsisp.com\/helps\/76376.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-02-22T03:17:16+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"7 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/76376.html","url":"https:\/\/www.wsisp.com\/helps\/76376.html","name":"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-02-22T03:17:16+00:00","dateModified":"2026-02-22T03:17:16+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/76376.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/76376.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/76376.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"Linux\u6807\u51c6IO\u4e0e\u7cfb\u7edfIO\u51fd\u6570\u5168\u89e3\u6790"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/76376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=76376"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/76376\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=76376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=76376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=76376"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=76376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}