函数读入字符

#include <iostream>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
int main(int argc, char** argv) {
    int c;
    cout<<"enter a sentence:"<<endl;
    while((c=cin.get())!=EOF)
    cout.put(c);
    return 0;
}