| 词条 | read() |
| 释义 | § 名称 函数名: read 功 能: 从文件中读 用 法: int read(int handle, void *buf, int nbyte); § 程序例 #include <stdio.h> #include <io.h> #include <alloc.h> #include <fcntl.h> #include <process.h> #include <sys\\stat.h> int main(void) { void *buf; int handle, bytes; buf = malloc(10); /* Looks for a file in the current directory named TEST.$$$ and attempts to read 10 bytes from it. To use this example you should create the file TEST.$$$ */ if ((handle = open("TEST.$$$", O_RDONLY | O_BINARY, S_IWRITE | S_IREAD)) == -1) { printf("Error Opening File\"); exit(1); } if ((bytes = read(handle, buf, 10)) == -1) { printf("Read Failed.\"); exit(1); } else { printf("Read: %d bytes read.\", bytes); } return 0; } |
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