C ³ÌÐòÎÊÌ⣨ËÄ£© - C/C++ / CÓïÑÔ

#include "stdio.h"

int main()
{
  char *ch(char *, char *);
  char str1[]="I am glad to meet you!";
  char str2[]="Welcom to study C!";
  printf("%s", ch(str1, str2));

return 0;
}

char *ch(char *str1, char *str2)
{
  char *p;
  p=str2;
  if(*str2 == NULL)
return NULL;
// exit(-1);

  do
  {
  *str2=*str1;
  str1++;
  str2++;
  }while(*str1!=NULL);

  return(p);
}
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  ¼´£ºÎªÊ²Ã´str2[]»á±»¸Ä³ÉI am glad to meet you!am glad to meet you!ÄØ£¿
  ÎÒµ¥²½µ÷ÊÔʱ¾õµÃstr2[] = I am glad to meet you!ô£¿

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*str2 = '\0';
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#include <stdio.h>

int main()
{
    char *ch(char *, char *);
    char str1[]="I am glad to meet you!";