倒置字符串

1、倒置字符串
思路：先整体倒置输出字符串，然后判断’ ‘，遇到空格时并且再将字符串倒置输出，直至遇见’\0’时，程序结束，再输出字符串！
2、程序：

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void reverse(char* start, char* end);
int main()
{
	char a[] = "i like dog !";
	int count = sizeof(a);
	// 翻转整个句子
	reverse(a, a + strlen(a) - 1);
	// 翻转单词
	char* start = a;
	while (*start)
	{
		char* end = start;
		while (*end != ' ' && *end)
			end++;
		reverse(start, end - 1);
		if (*end)
			start = end + 1;
		else
			start = end;
	}
	printf("%s", a);
 system("pause");
 return 0;
}
void reverse(char* start, char* end)
{
	while (start < end)
	{
		char temp = *start;
		*start = *end;
		*end = temp;
		end--;
		start++;
	}
}

3、结果：