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read, sysread, syswrite
# 19 JMJS    00.7.21 09:54

read : Unix의 fread 함수와 동일
sysread : Unix의 read함수를 호출
syswrite: Unix의 write함수를 호출

read (filevar, result, length, skipval);
        skipval: 건너뛸 byte수. 옵션

read (MYFILE, $scalar, 80);

read함수는 실제로 읽어 들인 바이트 수를 반환한다. 만약 MYFILE이 파일의 끝(EOF)이면 read함수는 0을 반환하고, 에러가 발생하면 read함수는 널 문자열을 반환한다.

sysread (filevar, result, length, skipval);
sysread (MYFILE, $scalar, 80);
sysread (MYFILE, $scalar, 40, 80);

syswrite (filevar, data, length, skipval);
syswrite (MYFILE, $scalar, 80);
syswrite (MYFILE, $scalar, 40, 80);

게시물: 103 건, 현재: 1 / 2 쪽
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