Question

我试图扭转字符串中的单词，我刚开始学习C，所以我尝试了我所知道的事情。这是代码

#include <stdio.h>

int main (void)
{
    char a[11] , b[11]  ;
    int i = 0  , j = 0 , x  , p = 0 , q =9  ;
    while ((a[j++] = getchar()) != '\n') ;
    a[10] = '\0' ;
    while (p < 11 )
    {
        b[q] = a[p] ;
        q-- ;
        p++ ;
    }

    j = 0 ;
    while (j < 10)
    {
        ++i  ;
        ++j ;
        if (a[j] == ' ' || a[j] == '\0')
        {
            for (x = j  ; x >= (j - i) ; x--)
                printf("%c" , b[x]) ;
            i = 0 ;
        }
    }
    return 0 ;
}

出乎意料的是＆＃39; =＆＃39; 。就像我的名字一样是name = my

请进行必要的更正。

Answer 1

如果你想在这里接受单个字符串就是代码，

#include<stdio.h>

int main()
{
   char myString[50],newString[50];
   int index1=0,index2=0,tmpIndex;

   printf("Enter a string:\n");
   scanf("%s",&myString);
   printf("Entered String:%s\n",myString);


   while(myString[index2]!= '\0')
   {
     index2=index2+1;
   }
   tmpIndex=index2;

   printf("Original String Lenght=%d\n",tmpIndex);
   printf("Reversing String....\n");

   index2=index2 - 1;//To not to copy the '\0' of original string
   while(index1 < tmpIndex)
   {
     newString[index1]=myString[index2];
     //printf("%c\n",newString[index1]);
     index1++;
     index2--;
   }
   newString[index1] = '\0';//finally at the end of string add '\0' 
   printf("\n%s",newString);
   printf("\nNew string Lenght:%d",index1);
 }

接受中间带空格的字符串是代码，（只需使用fgets()代替scanf()。）

#include<stdio.h>

int main()
{
   char myString[50],newString[50];
   int index1=0,index2=0,tmpIndex;

   printf("Enter a string:\n");
   fgets(myString,50,stdin);
   printf("Entered String:%s\n",myString);


   while(myString[index2]!= '\n')
   {
     index2=index2+1;
   }
   tmpIndex=index2;

   printf("Original String Lenght=%d\n",tmpIndex);
   printf("Reversing String....\n");

   index2=index2 - 1;//To not to copy the '\0' of original string
   while(index1 < tmpIndex)
   {
    newString[index1]=myString[index2];
    //printf("%c\n",newString[index1]);
    index1++;
    index2--;
   }
   newString[index1] = '\0';//finally at the end of string add '\0' 
   printf("\n%s",newString);
   printf("\nNew string Lenght:%d",index1);
}

反转字符串中的单词c

1 个答案: