橘子味的心

    • 二十五岁时我们都一样愚蠢、多愁善感，喜欢故弄玄虚，可如果不那样的话，五十岁时也就不会如此明智。

    标题：C示例反转一行的程序

    C示例反转一行的程序

    #include <stdio.h>

#include <string.h>



int string_length(char s[]) {

   int i = 0;



   while(s[i]!='\0')

      i++;



   return i;

}



void string_reverse(char st[]) {

   int i,j,len;

   char ch;



   j = len = string_length(st) - 1;

   i = 0;



   while(i < j) {

      ch = st[j];

      st[j] = st[i];

      st[i] = ch;

      i++;

      j--;

   }

}



int main (void) {

   char line[] = "Taj Mahal is one of the seven wonders of the world";

   char reverse[100] = "", temp[50];

   int i, j, n;



   n = string_length(line);



   for(i = n-1; i >= 0; --i) {



      for(j = 0; i >= 0 && line[i] != ' '; --i,++j)

         temp[j] = line[i];



      temp[j] = '\0';



      string_reverse(temp);



      strcat(reverse,temp);

      strcat(reverse," ");

   }



   printf("Original - %s\n", line);

   printf("Reversed - %s\n",reverse);



   return 0;

}

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