倒置英文句子中单词的字母顺序

#include<iostream>
#include<string.h>
using namespace std;

class Reverse
{
public:
void Reverse_1(string s,string &s2)
{
if(s.length()<=0)
return ;
int i=0,j=0;
while(s[i]!='\0')
{
while((s[i]>='a'&&s[i]<'z')||(s[i]>='A'&&s[i]<'Z'))
i++;
if(s[i]=='.'||s[i]=='!'||s[i]==','||s[i]=='?'||s[i]==' '||s[i]=='\0')
{
string temp=Reverse_2(s,j,i-1);
s2+=temp;
s2+=s[i];
if(s[i]=='\0')
return;
}
i++;
j=i;
}
}
string Reverse_2(string s,int begin,int end)<span style="font-family: Arial;">//翻转每个单词.</span>
{
string s1;
char temp;
int index=begin,index1=end-begin+1;
while(begin<=end)
{
temp=s[begin];
s[begin]=s[end];
s[end]=temp;
end--;
begin++;
}
return s.substr(index,index1);;
}
};
int main()
{
string str,s;
s="";
getline(cin,str);
Reverse r;
r.Reverse_1(str,s);
cout<<s<<endl;
}