既有适合小白学习的零基础资料，也有适合3年以上经验的小伙伴深入学习提升的进阶课程，涵盖了95%以上物联网嵌入式知识点，真正体系化！
由于文件比较多，这里只是将部分目录截图出来，全套包含大厂面经、学习笔记、源码讲义、实战项目、大纲路线、电子书籍、讲解视频，并且后续会持续更新
cout << "email = " << obj.email() << endl;
}
int main() { // 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;
set_person(); //序列化
get_person(); //反序列化
// Optional: Delete all global objects allocated by libprotobuf.
google::protobuf::ShutdownProtobufLibrary();
return 0;
}
## C++ String的序列化和反序列化
//bool SerializeToString(string* output) const; //bool ParseFromString(const string& data);
string str; //全局变量
void set_person() { Person obj; obj.set_name("mike"); obj.set_id(1); obj.set_email("xxx@qq.com"); //*obj.mutable_email() = "xxx@qq.com";
obj.SerializeToString(&str); //序列化，obj成员的内容设置给str
}
void get_person() { Person obj; obj.ParseFromString(str); //反序列化, str内容设置给obj的成员
cout << "name = " << obj.name() << endl;
cout << "id = " << obj.id() << endl;
cout << "email = " << *obj.mutable_email() << endl;
}
## 文件描述符序列化和反序列化
//bool SerializeToFileDescriptor(int file_descriptor) const; //bool ParseFromFileDescriptor(int file_descriptor);
void set_person() { Person obj; obj.set_name("mike"); obj.set_id(1); obj.set_email("xxx@qq.com"); //*obj.mutable_email() = "xxx@qq.com";
//O\_CREAT: 新建文件， O\_TRUNC：清空文件，O\_RDWR：读写
int fd = open("./pb.xxx", O_CREAT | O_TRUNC | O_RDWR, 0644);
if (fd <= 0)
{
perror("open");
exit(0);
}
obj.SerializeToFileDescriptor(fd); //序列化，obj成员的内容写入fd所关联的文件中
close(fd); //关闭文件
}
void get_person() { int fd = open("./pb.xxx", O_RDONLY); //O_RDONLY： 只读方式 if (fd <= 0) { perror("open"); exit(0); }
Person obj;
obj.ParseFromFileDescriptor(fd); //反序列化, fd文件内容设置给obj的成员
close(fd); //关闭文件
cout << "name = " << obj.name() << endl;
cout << "id = " << obj.id() << endl;
cout << "email = " << *obj.mutable_email() << endl;
}
## C++ stream 序列化和反序列化
//bool SerializeToOstream(ostream* output) const; //bool ParseFromIstream(istream* input);
void set_person() { Person obj; obj.set_name("mike"); obj.set_id(1); obj.set_email("xxx@qq.com"); //*obj.mutable_email() = "xxx@qq.com";
fstream output("pb.xxx", ios::out | ios::trunc | ios::binary);
bool flag = obj.SerializeToOstream(&output);//序列化
if (!flag)
{
cerr << "Failed to write file." << endl;
return;
}
output.close();//关闭文件
}
void get_person() { Person obj; fstream input("./pb.xxx", ios::in | ios::binary); obj.ParseFromIstream(&input); //反序列化 input.close(); //关闭文件
cout << "name = " << obj.name() << endl;
cout << "id = " << obj.id() << endl;
cout << "email = " << \*obj.mutable_email() << endl;
既有适合小白学习的零基础资料，也有适合3年以上经验的小伙伴深入学习提升的进阶课程，涵盖了95%以上物联网嵌入式知识点，真正体系化！
由于文件比较多，这里只是将部分目录截图出来，全套包含大厂面经、学习笔记、源码讲义、实战项目、大纲路线、电子书籍、讲解视频，并且后续会持续更新
