如何从输入短语中获取单词，然后使用C按字母顺序获取第一个单词和最后一个单词？

核

我是C编程新手，需要有关C赋值的帮助。

我在使用fgets的字符串中输入了“苹果香蕉橙梨”，我的预期输出是“第一个单词：苹果，最后一个单词：梨”，按字母顺序排列。请帮忙。谢谢。

这是我的脚本，很抱歉，这是C的新增功能。

#include <stdio.h>
#include <string.h>

int main()
{
    char string[256];
    char word0[20];
    char word1[20];
    char word2[20];
    char word3[20];

    printf( "Enter 5 words seperated by space: " );

    fgets ( string, 256, stdin );

//Trying figure out the scanf part.

//Dignosis inputs.
    printf( "You entered:%s", string );
    printf( "1st word:%s", word0 );
    printf( "2nd word:%s", word1 );
    printf( "3rd word:%s", word2 );
    printf( "4th word:%s", word3 );


//To be doing the comparison here.
//Compare only the first alphabet of the word.
char firstWord[20];
char secondWord[20];

printf(" First word:%s, :ast word:%s",firstWord,secondWord);


getchar();//To pause the script.
}

蓝精灵

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(){
    char string[256];
    char word[4][20];

    printf( "Enter 4 words seperated by space: " );

    fgets ( string, 256, stdin );

    sscanf(string, "%s %s %s %s",
        word[0], word[1], word[2], word[3]);

//Dignosis inputs.
    printf( "You entered:%s", string );
    printf( "1st word:%s\n", word[0] );
    printf( "2nd word:%s\n", word[1] );
    printf( "3rd word:%s\n", word[2] );
    printf( "4th word:%s\n", word[3] );

    qsort(word, sizeof(word)/sizeof(*word), sizeof(*word), (int (*)(const void*, const void*))strcmp);

    printf("First word:%s, :last word:%s\n", word[0], word[3]);

    getchar();//To pause the script.
    return 0;
}

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