控制台程序输入密码时显示星号

int _tmain(int argc, _TCHAR* argv[])
{
char password[100]="";
char c;
int i=0;
while (true)
{
c=getch();
if (c=='/r')
{
break;
}
else if (c=='/b')
{
if (i>0)
i--;
putchar('/b');
putchar(' ');
putchar('/b');
}
else
{
password[i++] = c;
putchar('*');
}
}
password[i] = '/0';
cout<<"/n你的密码是:"<<password<<endl;

system("pause");
return 0;
}