字符串排序之之之之之之之之之新建一个指针数组来更轻快地交换数据并且保护原始数据（同cprimerplus例题）

#include <stdio.h>

#include <string.h>

#define SIZE 3

#define LEN 81

int main(void)

{

char ch[SIZE][LEN];

char* temp[SIZE];

char* pch;

int i,j;

for (i = 0; i < SIZE; i++)

{

gets(ch[i]);

temp[i] = ch[i];

}

for (i = 0; i < SIZE - 1; i++)

{

for (j = i + 1; j < SIZE; j++)

{

if (strcmp(ch[i], ch[j]) > 0)

{

pch = temp[i];

temp[i] = temp[j];

temp[j] = pch;

}

}

}

for (i = 0; i < SIZE; i++)

puts(temp[i]);

return 0;

}