源代码:
#include "apue.h"
#include
int
main(void)
{
char line[MAXLINE];
FILE *fpin;
if ((fpin = popen("myuclc", "r")) == NULL)
err_sys("popen error");
for ( ; ; ) {
fputs("prompt> ", stdout);
fflush(stdout);
if (fgets(line, MAXLINE, fpin) == NULL)
break;
if (fputs(line, stdout) == EOF)
err_sys("fputs error to pipe");
}
if (pclose(fpin) == -1)
err_sys("pclose error");
putchar('\n');
exit(0);
}
直接输入回车还是会显示prompt> 等待输入啊