c语言编译输入一行电报文字可以任先输入，一为原文输入，一为将字母变成下一字母

#include <iostream.h>
const int N=200;
int main()
{
char s[N];
cout<<"Please input a string."<<endl;
cin.getline(s,N);
for(int i=0;s[i]!='\0';i++)
{
if(s[i]>='a' && s[i]<'z' || s[i]>='A' && s[i]<'Z')
s[i]=s[i]+1;
else if(s[i]=='z' || s[i]=='Z')
s[i]=s[i]-25;
else
continue;
}
cout<<"加密后为"<<endl;
cout<<s<<endl;

return 0;
}

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