自己不想写了，copy的别人的代码，加了点注释

#include 
     
      #include 
      
       using namespace std;string TAB[10]={
    "ling ","yi ","er ","san ","si ","wu ","liu ","qi ","ba ","jiu "};string RFState[5]={
    "","","Shi ","Bai ","Qian "};string REFState[4]={
    "","","Wan ","Yi "};string ReadFunction(string s){    int n=s.size(),i=0,j=0;    string ret="";//储存s读的结果    while(true)    {        i=j;        while(j
       
        >s;    if(s=="0")    {        cout<<"ling";        return 0;    }    if(s[0]=='-')    {        ans+="Fu ";        s=s.substr(1);    }     int n=s.size(),m,k=(n%4==0)?4:n%4;//k记录最开始读的长度，可能不是4的整数    if(n==9) m=3;//分三段读    else if(n>=5) m=2;//分两段读     else m=1;//分一段读    for(int i=m;i>0;i--)      {          if(i