项目二新增以二进制方式写入的C语言程序范例。

02/backend/main.c

@@ -122,7 +122,7 @@ int view()
 		stRecord.tBeginTime = (time_t)ltime;
 		localtime_s(&stTime, &stRecord.tBeginTime);
 
-		printf("%s\t%5d   \t%5d   \t%5d   \t%d/%02d/%02d %02d:%02d:%02d",
+		printf("%s\t%5d   \t%5d   \t%5d   \t%d/%02d/%02d %02d:%02d:%02d\n",
 			stRecord.szName,
 			stRecord.nGuess,
 			stRecord.nCount,

02/backend/main_binary.c

@@ -0,0 +1,158 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <conio.h>
+
+#define MAX_NAME_LEN 100
+#define SETTING_PATH "setting.bin"
+#define RECORD_PATH "record.bin"
+
+struct RECORD
+{
+	int nRand;
+	int nGuess;
+	int nCount;
+	time_t tBeginTime;
+	int nCost;
+	char szName[MAX_NAME_LEN];
+};
+
+
+int loadNickname(const char* szPath, char* szNickname, int nSize) 
+{
+	FILE *fp = 0;
+	if (!(fp = fopen(szPath, "rb")))
+		return 1;
+	memset(szNickname, 0, nSize);
+	fread(szNickname, nSize, 1, fp);
+	szNickname[nSize - 1] = 0;
+	fclose(fp);
+	return 0;
+}
+
+const char* setNickname(const char* szPath, char* szNickname) 
+{
+	FILE *fp = 0;
+	if (!(fp = fopen(szPath, "wb")))
+		return 1;
+	printf("请输入你的名字:");
+	scanf("%s", szNickname);
+	szNickname[MAX_NAME_LEN - 1] = 0;
+	fwrite(szNickname, sizeof(szNickname), 1, fp);
+	fclose(fp);
+	return szNickname;
+}
+
+struct RECORD guess(char* szNickName)
+{
+	struct RECORD stRecord = {0, 0, 0, 0, 0};
+	stRecord.tBeginTime = time(NULL);
+	stRecord.nRand = rand() % 1000 + 1;
+	printf("请输入1~1000的数字：");
+	while (stRecord.nGuess != stRecord.nRand)
+	{
+		while (!scanf("%d", &stRecord.nGuess))
+			getchar(); // 防止用户输入非数字导致的死循环
+		if (stRecord.nGuess > stRecord.nRand)
+		{
+			printf("大了！\n");
+		}
+		else if (stRecord.nGuess < stRecord.nRand)
+		{
+			printf("小了！\n");
+		}
+		stRecord.nCount++;
+	}
+	stRecord.nCost = time(NULL) - stRecord.tBeginTime;
+	printf("你猜中了！你猜了%d次！\n", stRecord.nCount);
+	if (0 == szNickName || 0 == strlen(szNickName)) 
+	{
+		printf("这是你第一次玩，");
+		setNickname(SETTING_PATH, szNickName);	
+	}
+	strcpy(stRecord.szName, szNickName);
+	return stRecord;
+}
+
+int save(struct RECORD stRecord)
+{
+	FILE * fp = NULL;
+	if(!(fp = fopen(RECORD_PATH, "ab")))
+	{
+		printf("保存记录失败.. \n");
+		return 1;
+	}   
+	fseek(fp, SEEK_END, 0); 
+
+	fwrite(&stRecord, sizeof(struct RECORD), 1, fp);
+	fclose(fp);
+	return 0;
+}
+
+int view()
+{
+	FILE * fp = NULL;
+	struct RECORD stRecord;
+	struct tm stTime = {0};
+	if (!(fp = fopen(RECORD_PATH, "rb")))
+	{
+		printf("你还没有玩过呢。 \n");
+		return 1;
+	}   
+
+	printf("姓名\t所猜数字\t猜测次数\t花费秒数\t开始时间\n");
+
+	while(!feof(fp)) 
+	{
+		if(fread(&stRecord, sizeof(struct RECORD), 1, fp) <= 0) 
+			continue;
+		localtime_s(&stTime, &stRecord.tBeginTime);
+
+		printf("%s\t%5d   \t%5d   \t%5d   \t%d/%02d/%02d %02d:%02d:%02d\n",
+			stRecord.szName,
+			stRecord.nGuess,
+			stRecord.nCount,
+			stRecord.nCost,
+			stTime.tm_year + 1900, stTime.tm_mon, stTime.tm_mday, 
+			stTime.tm_hour, stTime.tm_min, stTime.tm_sec);
+	}
+	printf("\n\n");
+	fclose(fp);
+	return 0;
+}
+
+
+int menu(char* szNickname) {
+	if (szNickname && strlen(szNickname) > 0)
+		printf("你好！%s！", szNickname);
+	printf("欢迎来玩『 猜数字 』!\n");
+	printf("\n");
+	printf("1. 开始游戏！\n");
+	printf("2. 查看历史！\n");
+	printf("3. 更改昵称!\n");
+	printf("4. 退出游戏！\n");
+	printf("\n");
+
+	return getch();
+}
+
+int main()
+{
+	char szNickname[MAX_NAME_LEN] = "";
+	srand((unsigned)time(NULL));
+	while(1)
+	{
+		loadNickname(SETTING_PATH, szNickname, MAX_NAME_LEN);
+		switch (menu(szNickname))
+		{
+		case '1': save(guess(szNickname)); break;
+		case '2': view(); break;
+		case '3': setNickname(SETTING_PATH, szNickname); break;
+		case '4': return 0;
+		default : continue;		
+		}
+	}
+	return 0;
+}
+