#include<iostream>
   #include<fstream>
   #include<string>
   $include "tutorial.addressbook.pb.h"
   using namespace std;

   //定义一个函数,用于设置person对象的值;
   //参数为: 一个person 对象的指针; 返回为空;
   void PromptForAddress(tutorial::Person* person) {
          cout << "Enter person ID number :";
          int id;
          cin >> id;
          person->set_id(id);
          cin.ignore(, '\n')       //作用:用于清除缓冲区的内容,防止对下次输入产生影响.

          cout << "Enter name: ";
          getline(cin, *person->mutable_name()); //mutable_name()返回一个指针,再加上*,要干什么?看来要补补getline()函数了;

          cout<< "Enter email address(blank for none): ";
          string email;
          getline(cin, email);
          if (!email.empty()) {
                  person->set_email(email);
          }

          while (true) {
                  cout << "Enter a phone number (or leave blank to finish): ";
                  string number;
                  getline(cin, number);
                  if (number.empty()) {
                          break;
                  }

          tutorial::Person::PhoneNumber* phone_number = person->add_phone();
          phone_number->set_number(number);

          cout <<"Is this a mobile, home, or work phone? ";
          string type;
          getline(cin, type);
          if (type == "mobile") {
                  phone_number->set_type(tutorial::Person::MOBILE);
          } else if (type == "home") {
                  phone_number->set_type(tutorial::Person::HOME);
          } else if (type =="work") {
                  phone_number->set_type(tutorial::Person::WORK);
          } else {
                  cout << "Unknown phone type. Using  default." <<endl;
          }
          }
  }

  int main(int argc, char* argv[]) {
          GOOGLE_PROTOBUF_VERIFY_VERSION; //这是一个宏命令,用于检查看看用的protobuf的库是否兼容;最好加上它;

          ) {
                  cerr << ] << "ADDRESS_BOOK_FILＥ"　<<　endl;
                  ;
          }

  tutorial::AddressBook address_book;

  //读文件,如果不存在,就创建;
  fstream input(argv[], ios::in | ios::binary);
  if (!input) {
          cout << argv[] << ":File not found, Creating a new file." <<endl;
  } else if (!address_book.ParseFromeIstream(&input)) {
          cerr << "Failed to parse address book." << endl;
          ;
  }

  //增加address;
  PromptForAddress(address_book.add_person());

  //写放盘中;
  fstream output(argv[], ios::out | ios::trunc | ios::binary);
  if (!address_book.SerializeToOstream(&output)) {
          cerr << "Failed to write address book." << endl;
          ;
  }                     

  //用于把全局的由libprotobuf申请的对象空间;
  google::protobuf::ShutdownProtobufLibrary();

  ;
  }

#include <iostream>
#include <fstream>
#include <string>
#include "addressbook.pb.h"
using namespace std;

// Iterates though all people in the AddressBook and prints info about them.
void ListPeople(const tutorial::AddressBook& address_book) {
  ; i < address_book.person_size(); i++) {
    const tutorial::Person& person = address_book.person(i);

    cout << "Person ID: " << person.id() << endl;
    cout << "  Name: " << person.name() << endl;
    if (person.has_email()) {
      cout << "  E-mail address: " << person.email() << endl;
    }

    ; j < person.phone_size(); j++) {
      const tutorial::Person::PhoneNumber& phone_number = person.phone(j);

      switch (phone_number.type()) {
        case tutorial::Person::MOBILE:
          cout << "  Mobile phone #: ";
          break;
        case tutorial::Person::HOME:
          cout << "  Home phone #: ";
          break;
        case tutorial::Person::WORK:
          cout << "  Work phone #: ";
          break;
      }
      cout << phone_number.number() << endl;
    }
  }
}

// Main function:  Reads the entire address book from a file and prints all
//   the information inside.
int main(int argc, char* argv[]) {
  // Verify that the version of the library that we linked against is
  // compatible with the version of the headers we compiled against.
  GOOGLE_PROTOBUF_VERIFY_VERSION;

  ) {
    cerr << ] << " ADDRESS_BOOK_FILE" << endl;
    ;
  }

  tutorial::AddressBook address_book;

  {
    // Read the existing address book.
    fstream input(argv[], ios::in | ios::binary);
    if (!address_book.ParseFromIstream(&input)) {
      cerr << "Failed to parse address book." << endl;
      ;
    }
  }

  ListPeople(address_book);

  // Optional:  Delete all global objects allocated by libprotobuf.
  google::protobuf::ShutdownProtobufLibrary();

  ;
}

message SongServerRequest {
  required ;
}

enum Foo {
  FIRST_VALUE = ;
  SECOND_VALUE = ;
}