./add_person_cpp zyk
zyk: File not found. Creating a new file.
Enter person ID number: 123
Enter name: zhaoyongke
Enter email address (blank for none): zhaoyongke@yeah.net
Enter a phone number (or leave blank to finish): 188188188
Is this a mobile, home, or work phone?（回車）
Unknown phone type. Using default.
Enter a phone number (or leave blank to finish):（回車）
然后運行list_people_cpp：
[plain] view plaincopyprint?
// See README.txt for information and build instructions.package tutorial;option java_package = "com.example.tutorial";
option java_outer_classname = "AddressBookProtos";message Person {required string name = 1;required int32 id = 2; // Unique ID number for this person.optional string email = 3;enum PhoneType {MOBILE = 0;HOME = 1;WORK = 2;}message PhoneNumber {required string number = 1;optional PhoneType type = 2 [default = HOME];}repeated PhoneNumber phone = 4;
}// Our address book file is just one of these.
message AddressBook {repeated Person person = 1;
}
前幾行是定義包的，可以忽略。
//add_person.c
#include <iostream>
#include <fstream>
#include <string>
#include "addressbook.pb.h"
using namespace std;// This function fills in a Person message based on user input.
void PromptForAddress(tutorial::Person* person) {cout << "Enter person ID number: ";int id;cin >> id;person->set_id(id);cin.ignore(256, '\n');cout << "Enter name: ";getline(cin, *person->mutable_name());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;}}
}
// Main function: ?Reads the entire address book from a file,
// ? adds one person based on user input, then writes it back out to the same
// ? file.
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;if (argc != 2) {cerr << "Usage: ?" << argv[0] << " ADDRESS_BOOK_FILE" << endl;return -1;}tutorial::AddressBook address_book;{// Read the existing address book.fstream input(argv[1], ios::in | ios::binary);if (!input) {cout << argv[1] << ": File not found. ?Creating a new file." << endl;} else if (!address_book.ParseFromIstream(&input)) {cerr << "Failed to parse address book." << endl;return -1;}}// Add an address.PromptForAddress(address_book.add_person());{// Write the new address book back to disk.fstream output(argv[1], ios::out | ios::trunc | ios::binary);if (!address_book.SerializeToOstream(&output)) {cerr << "Failed to write address book." << endl;return -1;}}// Optional: ?Delete all global objects allocated by libprotobuf.google::protobuf::ShutdownProtobufLibrary();return 0;
}
// list_people.c#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) {for (int i = 0; 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;}for (int j = 0; 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;if (argc != 2) {cerr << "Usage: " << argv[0] << " ADDRESS_BOOK_FILE" << endl;return -1;}tutorial::AddressBook address_book;{// Read the existing address book.fstream input(argv[1], ios::in | ios::binary);if (!address_book.ParseFromIstream(&input)) {cerr << "Failed to parse address book." << endl;return -1;}}ListPeople(address_book);// Optional: Delete all global objects allocated by libprotobuf.google::protobuf::ShutdownProtobufLibrary();return 0;
}
相信做完這個實驗，你將不再對Caffe代碼中的參數初始化、參數保存操作感到陌生，一切都很自然。
