使用两种不同的方式复制字符串

#include <STDIO.H>

void cpfile1( char *s1, const char *s2 );
void cpfile2( char *s1, const char *s2 );

int main()
{
char str1[10];
char str2[]="hello world";
char str3[10];
char *str4="good bye";
cpfile1( str1, str2 );
cpfile2( str3, str4 );

printf( "copy string1 is %s/n", str1 );
printf( "copy string3 is %s/n", str3 );

return 0;
}

void cpfile1( char *s1, const char *s2 )
{
int i;
for( i=0;(s1[i]=s2[i])!='/0';i++ );
}

void cpfile2( char *s1, const char *s2)
{
for( ;(*s1=*s2)!='/0';s1++, s2++ );
}