c语言项目流程开发三部曲

一.这一部曲是紧接第二部没有介绍完的内容，主要是函数接口实体的实现，代码比较多，如果没有看前两部曲的先去看看，再来看这里，不然不好理解，话不说多上代码,

#define  _CRT_SECURE_NO_WARNINGS
#include "dict.h"





/**************函数实现************************/
/*统计文件中单词数量，返回单词数量*/
int statWordCount(char *filaename)
{
    FILE *F = fopen(filaename, "r");
    if (F == NULL)
    {
        printf("文件打开失败");
        return -1;
    }
    else
    {
        int num = 0;
        while (!feof(F))
        {
            char buf[275];
            fgets(buf, 275, F);
            num++;
        }
        fclose(F);
        return num / 2;//两行对应一个单词

    }
}
/*加载文本词库文件*/
void loadTextFile(char *filename)
{
    LEN = statWordCount(filename);//计算单词数量
    mallocForSArra(LEN);//为单词结构体数组分配内存
    FILE *F = fopen(filename, "r");
    if (F == NULL)
    {
        printf("加载文件失败");
        return;
    }
    createInitArray(F);//创建并初始化结构体数组
    printf("OK\n");
    


}
/*加载二进制词库文件*/
void loadBinFile(char *filename)
{
    FILE *F = fopen(filename, "rb");
    if (F == NULL)
    {
        printf("打开文件失败");
        return;
    }

    createInitBinArr(F);
    



}
/*为长度为len的结构体数组分配内存*/
void mallocForSArra(int len)
{
    DICT = (SWORD *)malloc(sizeof(SWORD)*len);
}
/*对结构体dict数组进行排序，使用插入排序*/
void sortStructArr(SWORD * dict)
{
    SWORD SW;
    int j;
    int i;
    for (i = 1; i < LEN; i++)
    {
        SW = dict[i];
        for (j  = i; j>0 && wordcmp(dict[j-1],SW) > 0; j--)
        {
            dict[j] = dict[j - 1];
        }
        dict[j] = SW;
    }
    printf("ok");

}
/*输入模块,返回输入字符串*/
char *getInput(char *p)
{

    scanf("%s",p);
    //printf("%s", p);
    return p;
}
/*输出模块，输出一个结构体*/
void setOutput(SWORD *word)
{
    if (word == NULL)
    {
        printf("没有找到您输入的单词\n");
        return;
    }
    printf("\n%s", word->key);
    int len = word->count_trans;
    printf("\n解释：\n");
    for (int i = 0; i < len; i++)
    {
        printf("\n\t%s", word->trans[i]);
    }

}
/*查询模块，使用二分法，据关键词key在词库里查询，找到返回这个结构体位置，否则返回NULL*/
SWORD *searchWord(char *key)
{
    //printf("%s\n",key);
    //int low = 0;
    //int high = LEN;
    //while (low < high)
    //{
    //    int mid = (low + high) / 2;

    //    if (strcmp(key,DICT[mid].key) == 0)
    //    {
    //        printf("%s", DICT[mid].key);
    //        return DICT + mid;

    //    }
    //    else if (strcmp(key, DICT[mid].key) > 0)
    //    {
    //        low = mid + 1;
    //    }
    //    else
    //    {
    //        high = mid - 1;
    //        printf("%s*********", DICT[mid].key);
    //        
    //    }
    //}
    //int len = strlen(key);
    //int dictlen = strlen(DICT[0].key);
    //printf("%d\t%d", len, dictlen);
    //printf("%s*********", DICT[0].key);
    for (int i = 0; i < LEN; i++)
    {
        if (strcmp(key, DICT[i].key) == 0)
        {
            return DICT + i;
        }
            


    }
    
    return NULL;

}
/*从输入获取要添加的单词*/
void getWord(SWORD *word)
{

    
    
    printf("请输入要添加的单词（输入#over结束添加)：");
    scanf("%s", word->key);

    printf("%s", word->key);

    printf("请输入解释数量：");
    scanf("%d", &(word->count_trans));
    for (int i = 0; i < word->count_trans; i++)
    {
        printf("请输入第%d条解释：",i+1);
        scanf("%s", (word->trans)[i]);
    }
    printf("hello");

    
}

/*添加单词word到结构体数组,弃用*/
void addWordToArr(SWORD *word)
{
    //给词库添加单词
    //int len = (*word).count_trans;

    //puts((*word).key);
    //for (int i = 0; i < len; i++)
    //{
    //    puts((*word).trans[i]);
    //}


    //printf("%d\n", LEN);
    //printf("%s\n", DICT[LEN - 1].key);
    //printf("%d\n", DICT[LEN - 1].count_trans);
    //for (size_t i = 0; i < DICT[LEN - 1].count_trans; i++)
    //{
    //    printf("%s\n", DICT[LEN - 1].trans[i]);
    //}
    LEN = LEN + 1;
    DICT = (SWORD *)realloc(DICT, LEN);
    DICT[10000 - 1] = *word;
    

    //puts((*word).key);
    //for (int i = 0; i < len; i++)
    //{
    //    puts((*word).trans[i]);
    //}
    //printf("%d\n", (*word).count_trans);

    //int keylen = strlen((*word).key)+1;
    //分配单词空间并填充
    //DICT[LEN - 1].key = (char *)malloc(sizeof(char) * keylen);
    //strcpy(DICT[LEN - 1].key, word->key);
    //DICT[LEN - 1].key[keylen - 1] = '\0';
    ////解释长度
    //int transnum = word->count_trans;
    //DICT[LEN - 1].count_trans = transnum;

    //DICT[LEN - 1].trans = (char **)malloc(sizeof(char *)*transnum);
    ////解释空间分配与填充
    //for (int i = 0; i < transnum; i++)
    //{
    //    int trlen = strlen(word->trans[i])+1;
    //    DICT[LEN - 1].trans[i] = (char *)malloc(sizeof(char)* trlen);
    //    strcpy(DICT[LEN - 1].trans[i], word->trans[i]);
    //    DICT[LEN - 1].trans[i][trlen - 1] = '\0';
    //}

}
/*保存一个单词到文件*/
void saveWord(char *filename,SWORD *sw)
{
    FILE *F = NULL;
    if (!_access(filename, 0))//如果文件存在
    {
        F = fopen(filename, "a");
        if (F == NULL)
        {
            printf("保存词库到文件失败");
            return;
        }

            char str[50];
            sprintf(str, "#%s", sw->key);
            fputs(str, F);

            char trans[200] = "";
            for (int i = 0; i < sw->count_trans; i++)
            {
                char strs[50];
                if (i == 0)
                {
                    sprintf(strs, "Trans:%s", sw->trans[i]);
                }
                else
                {
                    sprintf(strs, "@%s", sw->trans[i]);
                }
                strcat(trans, str);

            }
            fputs(trans, F);//将解释写入文件

    
        fclose(F);
    
    }
    else
    {
        F = fopen(filename, "w");
        if (F == NULL)
        {
            printf("保存词库到文件失败");
            return;
        }

            char str[50];
            sprintf(str, "#%s", sw->key);
            fputs(str, F);

            char trans[200] = "";
            for (int i = 0; i < sw->count_trans; i++)
            {
                char strs[50];
                if (i == 0)
                {
                    sprintf(strs, "Trans:%s", sw->trans[i]);
                }
                else
                {
                    sprintf(strs, "@%s", sw->trans[i]);
                }
                strcat(trans, str);

            }
            fputs(trans, F);//将解释写入文件


        fclose(F);
    }
    

}
/*生成二进制的词库文件,30位字符块大小*/
void createBinFile(SWORD *word)
{
    FILE *F = fopen(dictbitname, "wb");
    if (F == NULL)
    {
        printf("打开文件失败");
        return;
    }
    printf("打开文件成功");
    fwrite(&LEN, sizeof(int), 1, F);//前四个字节存储单词个数
    printf("写入长度成功");
    for (; word <= DICT+LEN-1; word += 1)
    {
        fwrite(word->key, sizeof(char),50, F);
        //printf("写入单词成功");
        fwrite(&(word->count_trans), sizeof(int),1, F);

        //printf("写入解释数量%d成功", word->count_trans);
        for (int i = 0; i < word->count_trans; i++)
        {

    
            fwrite(word->trans+i, sizeof(char), 50, F);
                //printf("\n写入解释成功");
            

            
        }
    }
    fclose(F);

}

/*计算一个字符串里某个ch字符的个数*/
int calcNumber(char *str,char ch)
{
    int num = 0;
    for (char *p =str; *p != '\0'; p++)
    {
        if (*p == ch)
        {
            num++;
        }
    }
    return num;
}
/*从字符串str中取出字符ch后面的字符串*/
char *rearstr(char *str, char ch,int *pos)
{
    char *p = strrchr(str, ch);
     *pos = p - str;
    p = p + 1;
    return p;
}

/*创建并初始化词库结构体数组*/
void createInitArray(FILE *F)
{
    for (int i = 0; i < LEN; i++)
    {
        char str[500] = { 0 };
        fgets(str, 500, F);
        char *temp = str + 1;
        int length = strlen(temp);//分配空间长度排除#号
        DICT[i].key = (char *)malloc(sizeof(char)*length);//一条关键字分配内存
        strcpy(DICT[i].key, temp);
        DICT[i].key[length - 1] = '\0';//关键词

        char strtrans[500] = { 0 };
        fgets(strtrans, 500, F);

        int len = strlen(strtrans) + 1;//加1是考虑到'\0'
        char *ch = (char *)malloc(sizeof(char)*len);//给每一个指针所指的字符串分配内存
        strcpy(ch, strtrans);//将数组里的字符串拷贝到ch中但不带'\0'
        ch[len - 1] = '\0';//添加字符串结束标记

        int number = calcNumber(strtrans, '@') + 1;
        DICT[i].count_trans = number;//解释的数量

        DICT[i].trans = (char **)malloc(sizeof(char *)*number);

        char *transtemp = strtrans + 6;
        char *tok = strtok(transtemp, "@");
        int j = 0;
        while (tok != NULL)
        {
            int translen = strlen(tok)+1;
            DICT[i].trans[j] = (char *)malloc(sizeof(char)*translen);//给每一条解释分配存储空间
            strcpy(DICT[i].trans[j], tok);
            DICT[i].trans[j][translen - 1] = '\0';

            tok = strtok(NULL, "@");
            j++;
        }


    }
}

/*比较两个SWORD单词的大小,前一个大于后一个返回1，前一个小于后一个返回-1，前一个等于后一个返回0*/
int wordcmp(SWORD wordf, SWORD wordr)
{
    if (strcmp(wordf.key, wordr.key) == 0)
    {
        return 0;
    }
    else if (strcmp(wordf.key, wordr.key) > 0)
    {
        return 1;
    }
    else
    {
        return -1;
    }
}

/*创建并初始化二进制加载文件对应的的数组，30为写入块大小*/
void createInitBinArr(FILE *F)
{
    fread(&LEN, sizeof(int), 1, F);//先读取四个字节初始化词库长度
    mallocForSArra(LEN);//为词库数组分配内存
    SWORD *TEMP = DICT;
    while (!feof(F))//不在文件末尾
    {

        
        TEMP->key = (char *)malloc(sizeof(char)* 50);//一条关键字分配内存
        fread(TEMP->key, sizeof(char), 50, F);

        fread(&(TEMP->count_trans), sizeof(int), 1, F);//读取解释数量
        TEMP->trans = (char **)malloc(sizeof(char *)*(TEMP->count_trans));

        for (int i = 0; i < TEMP->count_trans; i++)
        {
                TEMP->trans[i] = (char *)malloc(sizeof(char)*50);//给每一条解释分配存储空间
                fread(TEMP->trans[i], sizeof(char), 50, F);
        }



    }
}
/*查询模块函数*/
void searchModel()
{

    //开始查询
    char p[100] = { 0 };
    printf("请输入要查找的单词：");
    char *instr = getInput(p);
    while (strcmp(instr, "#exit") != 0)//不等于#exit就一直查找
    {
        /*    printf("%s", instr);*/

        SWORD *wd = searchWord(instr);

        setOutput(wd);
        printf("请输入要查找的单词(输入#exit退出查询)：");
        instr = getInput(p);
    }

}
/*添加单词模块函数*/
void addWordModel()
{


    SWORD word;
    word.key = (char *)malloc(sizeof(char)* 50);//开辟单词输入缓冲区

    word.trans = (char **)malloc(sizeof(char *)* 10);//开辟解释输入缓冲区

    for (int i = 0; i < 10; i++)
    {
        word.trans[i] = (char *)malloc(sizeof(char)* 50);
    }
    //char key[100] = {0};
    //char trans[10][50] = {0};
    //word.key = key;
    //word.trans = trans;
     // getWord(&word);

    //int len = word.count_trans;
    //puts(word.key);
    //for (int i = 0; i < len; i++)
    //{
    //    puts(word.trans[i]);
    //}
    
    
    
      do
      {
         
          getWord(&word);//获取单词
          
          printf("是否保存词库数组到文件(输入0退出程序,1保存，2不保存)：0/1/2？\n");
          
          int yesorno;
          scanf("%d", &yesorno);
          if (yesorno == 1)
          {
              saveWord(dicttxtname, &word);/*保存词库结构数组到文件*/
          }
          else if (yesorno == 0)
          {
              exit(0);
          }
          else
          {

          }
        
          
      } while (strcmp(word.key, "#over") != 0);
      
        

    
}

 二.至此整个电子词典项目介绍完了，在加载二进制文件和读取时有些小bug，运行结果在第二部曲中有描述,本人目前换有一个计划，那就是监听键盘输入以及获取聊天信息，有意的朋友们欢迎一起交流，再次感谢大家。