当我从文件中加载序列化时，为什么我的向量的大小充满了结构？

As most of you may be following my line of questions already know, i'm trying to create a program that can serialize multiple structs to a .dat file, read them back in via loading it's serialization, edit the contents, and then re-write them to the file and so on. It's a inventory program I am trying to do and I can't get it to work for the life of me.As most of you may be following my line of ques