//输入3个字符串，按由小到大的顺序输出
#include "stdafx.h"
#include "stdio.h"
#include "string.h"
int main()
{void paixu(char *,char *);
char str1[20],str2[31],str3[20];
printf("input three line:\n");
gets(str1);
gets(str2);
gets(str3);
if(strcmp(str1,str2)>0) paixu(str1,str2);
if(strcmp(str1,str3)>0) paixu(str1,str3);
if(strcmp(str2,str3)>0) paixu(str2,str3);
printf("now,the order is:\n");
printf("%s\n%s\n%s\n",str1,str2,str3);
return 0;
}
void paixu(char *p1,char *p2)
{char p[20];
strcpy(p,p1); strcpy(p1,p2); strcpy(p2,p);
}
/*总结：1，string.h的头文件不能忘记
2. The get function is wrong is gets
3. strcpy is a copy function, and strcmp is a comparison function
*/
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Posted on 12/15/2015 2:24:01 PM
