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//求三个字符串的长度，并输出最长值和最短值及其长度
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char* strLenCmp(char* x,char* y,int* Len,int flag);
main()
{
char *str1="I am LYC." ;
char *str2="My english name is Daniel.";
char *str3="Could I make friend with you?";
char *strSht=NULL;
char *strLng=NULL;
int shtLen=0,lngLen=0;
printf("The three strings are:\n%s\n%s\n%s\n",str1,str2,str3);
strSht=strLenCmp(strLenCmp(str1,str2,&shtLen,0),str3,&shtLen,0); //求最短者
strLng=strLenCmp(strLenCmp(str1,str2,&lngLen,1),str3,&lngLen,1); //求最长者
printf("The shortest string and its length are:\n%s\n%d\n",strSht,shtLen);
printf("The longest string and its length are:\n%s\n%d\n",strLng,lngLen);
system("pause");
}
char* strLenCmp(char* x,char* y,int* Len,int flag)
{
int xLen,yLen;
xLen=strlen(x);
yLen=strlen(y);
char *temp=NULL;
switch(flag)
{ case 0:
{
if(xLen<yLen)
{
*Len=xLen;
temp=x;
}
else
{
*Len=yLen;
temp=y;
}
return temp;
}
case 1:
{
if(xLen<yLen)
{
*Len=yLen;
temp=y;
}
else
{
*Len=xLen;
temp=x;
}
return temp;
}
default: break;
}
}