1.++ch，代表字符+1输出，比如输入是a,那么输出是b

#include<iostream>
using namespace std;
int main()
{
	char ch;

	cout << "输入，我将重复\n";
	cin.get(ch);
	while (ch != '.')
	{
		if (ch == '\n')
			cout << ch;
		else
			cout << ++ch;//将ch往后加1输出字符
		cin.get(ch);
	}
	cout <<"OK"<< endl;
	system("pause");
	return 0;
}#include<iostre