摘要： 没写过C语言，学了一晚上C的结果，为交作业新鲜出炉的环境是 Ubuntu. 编译器 gcc#include<stdio.h>#include<stdlib.h>#include<memory.h>#include<termio.h>#define STDIN_FILENO 0#define MAX_LEN 8#define BACKSPACE 8#define ENTER 13#define ALARM 7#define DATA_FILE "./data.txt"#define USERNAME "root&quo 阅读全文