C语言中的打开文件函数及使用实例

王朝c/c++·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

#include <stdio.h>

main()

{

int c; /* Character read from the file. */

FILE *ptr; /* Pointer to the file. FILE is a

structure defined in <stdio.h> */

/* Open the file - no error checking done */

ptr = fopen("/etc/hosts","r");

/* Read one character at a time, checking

for the End of File. EOF is defined

in <stdio.h> as -1 */

while ((c = fgetc(ptr)) != EOF)

{

printf("%c",c); /* O/P the character to the screen */

}

fclose(ptr); /* Close the file. */

}

 
 
 
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