C++ c++；将文件读入对象向量，然后复制到向量指针

我正在编写一个程序，从一个文件中读取，并将每一行放入一个对象中，并将该行的所有内容分离到该对象中各自的变量中。我把那部分记下来了，只是为我定义的函数是这样的

void printSpecs(vector<watercraft *> inventory). 

---

都是同一行，实际上是文件的最后一行。谢谢

temptr

是其作用域的局部，在其作用域结束时无效。因此，存储其指针并在以后取消对指针的引用是危险的

例如，您可以在堆上创建对象，以便退出作用域时不会删除它们

for(int i = 0; i < 18; i++){
    test.push_back(new watercraft(inFile));
}

1: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
2: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
3: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
4: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
5: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
6: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
7: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
8: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
9: pontoon  Bentley 200 Cruise  Mercury 90  Silver  20  37795
10: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
11: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
12: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
13: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
14: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
15: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
16: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
17: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795
18: pontoon Bentley 200 Cruise  Mercury 90  Silver  20  37795

for(int i = 0; i < 18; i++){
    test.push_back(new watercraft(inFile));
}

vector<watercraft> watercrafts;

for(int i = 0; i < 18; i++){
    watercraft tempPtr(inFile);
    watercrafts.push_back(tempPtr);
}

for (size_t i = 0; i < watercrafts.size(); i++){
    test.push_back(&watercrafts[i]);
}