将字符串中的每个单词顺序进行颠倒，单词还是原来的单词，字母顺序不发生变化

/*测试数据：Shen zhen is a beautiful city!*/
/*运行结果：city! beautiful a is zhen Shen*/
#include<stdio.h>
#define SIZE 1000

void reverse(char *low,char *high)/*接受两个指针，将指针中间的内容倒置*/
{
while (low < high){
*low = *low^*high;
*high = *low^*high;
*low = *low^*high;
++low;
--high;
}
}

void reverseWord(char *str)
{
char *c = str, *e = str, *low, *high;
while (*e != 0){
++e;
}
reverse(c,--e);/*将整个字符串倒置*/
while (*c!=0){
while (*c != 0 && *c == 32){
++c;
}
low = c;/*指向单词首部的指针*/
while (*c != 0 && *c != 32){
++c;
}
high = c - 1;/*指向单词尾部的指针*/
if (low < high){
reverse(low,high);/*将单词倒置*/
}
}
puts(str);
}

int main()
{
char str[SIZE];
printf("Please enter a string :\n");
gets(str);
reverseWord(str);
return 0;
}