字符串反转的各种方法

      版本1
      void reverse(char *str)
      {
     	int i;
     	int j = strlen(str);
     	char temp;
     	for (i=0; i<j;i++,j--)
      	{
      		temp = str[i];
      		str[i] = str[j-1];
      		str[j-1] = temp;
      	}
      }
  
 

      版本2
      void reverse(char *str)
      {
     	int i;
     	int j = strlen(str);
     	char temp;
     	for (i=0; i<j/2;i++)
      	{
      		temp = str[i];
      		str[i] = str[j-i-1];
      		str[j-i-1] = temp;
      	}
      }
  
 

      版本3
      void reverse(char *str)
      {
     	char temp;
     	char *last_char;
     	for (last_char = str; *last_char != '\0'; last_char++)
      		;
      	last_char--;
     	while (str < last_char)
      	{
      		temp = *str;
      		*str++ = *last_char;
      		*last_char-- = temp;
      	}
      }
  
 

      版本4
      void reverse(char *str)
      {
     	char temp;
     	char *last_char;
     	for (last_char = str; *last_char != '\0'; last_char++)
      		;
      	last_char--;
     	while(str<last_char)
      	{
      		*str = *str ^ *last_char;
      		*last_char = *str ^ *last_char;
      		*str = *str ^ *last_char;;
      		str++;
      		last_char--;
      	}
      }
  
 

文章来源: blog.csdn.net，作者：悦来客栈的老板，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/qq523176585/article/details/11779505