C++primer plus第六版课后编程题答案17.1

#include <iostream>using namespace std;int main(){    cout<<"Enter the str:";    int count=0;    char ch;    while(cin.peek()!='$')    {         cin>>ch;         count++;             }    cout<<"\nIt has "<<count<<"  char "<<endl;    cin.get();    cin.get();    system("pause");               }