完整的有关问题，刚才那个发错了，请看看

完整的问题，刚才那个发错了，请各位大哥看看
现在有两个问题，第一个是用cin不能输入空格，用哪个指令能在字符串中输入空格
第二个，输入字符串数组后，在显示的子程序里只能显示出来第一个字符串，怎么修改
#include   "stdio.h "
#include <iostream>
#include <cstring>
using   namespace   std;  

unsigned   char   rulestr[20][100];
int   length;
int   rule_no;

void   add_rule()
{
cout < < "Please   type   in   the   rules:\n ";
cin> > rulestr[rule_no];
rule_no=rule_no+1;  

}
void   remove_rule()
{cout < < "Please   select   the   number   to   remove\n ";}

void   disp_rule()
{
cout < < "Display   all   the   rules!\n ";
int   rule_dis=1;
if(rule_dis <=rule_no)
{
cout < <rule_dis < < ":     " < <rulestr[rule_dis-1];
rule_dis++;
}

}

void   analyze_rule()
{cout < < "Analyzing\n ";}


void   main()
{    
cout < < "(1).   Add   a   filter   rule:\n ";
cout < < "(2).   Remove   a   filter   rule:\n ";
cout < < "(3).   Display   filter   rules:\n ";
cout < < "(4).   Analyze   filter   rules:\n ";
cout < < "(5).   Exit.\n ";
int   comm_no;
do   {cin> > comm_no;
if(comm_no==1)   add_rule();
if(comm_no==2)   remove_rule();
if(comm_no==3)   disp_rule();
if(comm_no==4)   analyze_rule();

}   while   (comm_no!=5);

   
}




------解决方案--------------------
char c[80]={0};
cin.getline(c,79);
cout < <c < <endl;
------解决方案--------------------
问题1,你可以用getch()来获取单个字符来进行判断
问题2，disp_rule()函数中，显示应该用while循环，而不是if，而且你的判断条件有问题。代码如下：
void disp_rule()
{
cout < < "Display all the rules!\n ";
int rule_dis=1;
while(rule_dis <=rule_no+1)
{
cout < <rule_dis < < ": " < <rulestr[rule_dis-1] < <endl;
rule_dis++;
}

}