fgets函数

fgets读取一行数据直到遇到回车换行结束，经过测试，遇到空格也会结束读取

#include <stdio.h>

#include <math.h>

#define TEST(x) printf("square of  " #x " is %d.\n",(x)*(x))  

int main(void)

{

    char device[256];

    char mount_path[256];

    char rest[256];

    FILE *fp;

    char line[1024];

    fp = fopen("kkq.txt", "rw");

    while(fgets(line, sizeof(line), fp)) 

   {

      //  line[strlen(line)-1] = '\0';

        sscanf(line, "%255s%255s\n", device,mount_path);

        printf("==>device:%s   mount_path:%s\n",device,mount_path);

    }

    fclose(fp);

}

kkq.txt内容为123456  abcd

输出结果为：device:123456   mount_path: abcd