C语言实战项目（AI代码）

#include <stdio.h>
#include <string.h>
//转换大小写
void RemoveLetter(char* str);
//删除多余空格
void RemoveSpace(char* str);
//疑问词转换
void TurnInterrogativewords(char* str);
//问号转成感叹号
void TurnSymbol(char* str);
//第一人称改第二人称
void TurnFirstperson(char* str);
void RemoveLetter(char* str)
{
  for (int i = 0; str[i] != '\0'; i++)
  {
    if (str[i] >= 'A' && str[i] <= 'Z' && str[i] != 'I')
    {
      str[i] += 32;
    }
  }
}
void RemoveSpace(char* str)
{
  char* p = str;
  int i = 0;
  while (*p)
  {
    if (str[0] == ' ')
      p++;
    if ((*(p + 1) < 'a' || *(p + 1) > 'z') && (*(p + 1) < 'A' || *(p + 1) > 'Z') && (*(p + 1) < '0' || *(p + 1) > '9'))
    {
      if (*p == ' ')
        p++;
    }
    if (*(p + 1) == '\0' && *p == ' ')
      break;
    str[i++] = *p;
    if (*p == ' ')
    {
      int count = 0;
      int j = 0;
      for (j = 0;; j++)
      {
        if (*(p + j) == ' ')
          count++;
        else break;
      }
      p += count - 1;
    }
    p++;
  }
  str[i] = '\0';
}
void TurnInterrogativewords(char* str)
{
  char* p = str;
  int k = 0;
  while (*p)
  {
    str[k++] = *p;
    if ((*p == 'c' || *p == 'C') && (*(p - 1) == ' ' || (*(p - 1) < 'a' || *(p - 1) > 'z') && (*(p - 1) < 'A' || *(p - 1) > 'Z') && (*(p - 1) < '0' || *(p - 1) > '9')))
    {
      if (*(p + 1) == 'a' && *(p + 2) == 'n' && *(p + 3) == ' ' && *(p + 4) == 'y' && *(p + 5) == 'o' && *(p + 6) == 'u' && (*(p + 7) == ' ' || (*(p + 7) < 'a' || *(p + 7) > 'z') && (*(p + 7) < 'A' || *(p + 7) > 'Z') && (*(p + 7) < '0' || *(p + 7) > '9')))
      {
        char ch1[] = "I can  ";
        int i = 0;
        for (i = 0; ch1[i] != '\0'; i++)
        {
          *(p + i) = ch1[i];
        }
      }
      if (*(p + 1) == 'o' && *(p + 2) == 'u' && *(p + 3) == 'l' && *(p + 4) == 'd' && *(p + 5) == ' ' && *(p + 6) == 'y' && *(p + 7) == 'o' && *(p + 8) == 'u' && (*(p + 9) == ' ' || (*(p + 9) < 'a' || *(p + 9) > 'z') && (*(p + 9) < 'A' || *(p + 9) > 'Z') && (*(p + 9) < '0' || *(p + 9) > '9')))
      {
        char ch2[] = "I could  ";
        int i = 0;
        for (i = 0; ch2[i] != '\0'; i++)
        {
          *(p + i) = ch2[i];
        }
      }
    }
    p++;
  }
  str[k] = '\0';
}
void TurnSymbol(char* str)
{
  char* p = str;
  int i = 0;
  while (*p)
  {
    if (*p == '?')
      *p = '!';
    str[i++] = *p;
    p++;
  }
  str[i] = '\0';
}
void TurnFirstperson(char* str)
{
  char* p = str;
  int j = 0;
  while (*p)
  {
    char ch[] = "you";
    if (*p == 'I' && ((*(p + 1) < 'A' || *(p + 1) > 'Z') && (*(p + 1) < 'a' || *(p + 1) > 'z') || *(p + 1) == ' '))
    {
      char str1[1000];
      for (int i = 0; ; i++)
      {
        str1[i] = *(p + 1 + i);
        if (*(p + 1 + i) == '\0')
          break;
      }
      for (int i = 0; ch[i] != '\0'; i++)
      {
        *(p + i) = ch[i];
      }
      for (int i = 0; ; i++)
      {
        *(p + 3 + i) = str1[i];
        if (str1[i] == '\0')
          break;
      }
    }
    if (*p == 'm' && *(p + 1) == 'e' && ((*(p + 2) < 'A' || *(p + 2) > 'Z') && (*(p + 2) < 'a' || *(p + 2) > 'z') && (*(p - 1) < 'A' || *(p - 1) > 'Z') && (*(p - 1) < 'a' || *(p - 1) > 'z') || (*(p + 2) == ' ' && *(p - 1) == ' ')))
    {
      char str2[1000];
      for (int i = 0; ; i++)
      {
        str2[i] = *(p + 2 + i);
        if (*(p + 1 + i) == '\0')
          break;
      }
      for (int i = 0; ch[i] != '\0'; i++)
      {
        *(p + i) = ch[i];
      }
      for (int i = 0; ; i++)
      {
        *(p + 3 + i) = str2[i];
        if (str2[i] == '\0')
          break;
      }
    }
    str[j++] = *p;
    p++;
  }
  str[j] = '\0';
}
int main()
{
  char chat[1000];
  char str[1000];
  getchar();
  while (1)
  {
    gets(chat);
    strcpy(str, chat);
    printf("%s\n", str);
    RemoveSpace(str);
    TurnFirstperson(str);
    TurnInterrogativewords(str);
    TurnSymbol(str);
    RemoveSpace(str);
    RemoveLetter(str);
    printf("AI: %s\n", str);
  }
  return 0;
}