Question

我正在使用C ++链表和visual Studio来创建表单并将其保存到csv文件中。这里出现的问题是它工作正常，每次我添加，它都完美地添加。但是在我关闭程序并重新打开并再次添加之后，整个数据就会清除csv文件并添加一个新文件。

所以基本上当我重新运行程序时，它不会添加产品，而是删除所有然后添加。

void BootLinkedList::bootSave()
    {
        ofstream infile;
        infile.open("footwear2.csv");
        Boots *node = head;
        while (node != NULL)
        {
            infile << node->getCode() << "," << node->getBrand() << "," << node->getColor() << "," << node->getSize() << "," << node->getPrice() << "," << node->getType() << "," << node->getSoleStyle() << "," << node->getBootType() << "," << node->getBootStyle() << "," << "-" << endl;
            node = node->getNext();
        }

        infile.close();
    }

Answer 1

更改

mvc-dispatcher-servlet.xml

到

 infile.open("footwear2.csv");

请参阅references

中的拘留

链接列表正在替换

1 个答案: