字符串中的字符搜索

Question

任何人都可以帮我修改我的代码吗

int main(void){

    int ctr,wordLength;

    char theWord[99];

    ctr = 0;

    printf("Enter a Word: ");
    scanf("%s", & );
    printf("Enter the letter you want to find: ");
    scanf("%s", & );

    while(ctr < wordLength | theWord[ctr]=='a'){

ctr++;
    }

//output
}

期望输出

输入一个词:你好

输入您要查找的字母:z

在单词中找不到字母 z。

Answer 1

• 你也可以这样做，

  #include <stdio.h>
  int main(void)
  {
     int ctr;
     char theWord[99], ch;
     ctr = 0;
     printf("Enter a Word: ");
     scanf("%s", theWord);
     printf("Enter the letter you want to find: ");
     scanf(" %c", &ch );
  
    for(int i = 0; theWord[i]; i++)
    {
       if(theWord[i] == ch)
          ctr++;
    }
    if(ctr != 0)
       printf("word is found\n");
    else
       printf("word is not found\n");
  }
  

• 是的，我们也可以使用 while 循环来做到这一点，

  int i = 0;
  while(theWord[i] != '\0' )
  {
     if(theWord[i] == ch)
       ctr++;
       i++;
  }
  if(ctr != 0)
     printf("word is found\n");
  else
     printf("word is not found\n");