Question

编制一个将两个字符串交叉合并的函数Merge(s1,s2)，例如Merge(“123”,”abc”)的返回结果是1a2b3c。

Answer 1

#include<stdio.h>
#include<string.h>
void merge(char *dest,const char *src1,const char *src2)
{
while(1)
{
if(*src1==0)
{
strcpy(dest,src2);
return;
}
if(*src2==0)
{
strcpy(dest,src1);
return;
}
*dest++=*src1++;
*dest++=*src2++;
}
}
void main()
{
char dest[100];
char src1[50];
char src2[50];
printf("please input two strings\n");
scanf("%s%s",src1,src2);
merge(dest,src1,src2);
printf("%s\n%s\n%s\n",src1,src2,dest);
}