list 泛型时出现的一个Bug

新建一个类

public class FolderBE
{
public string FolderOne
{ get; set; }
public string FolderTwo
{ get; set; }
public string FolderThree
{ get; set; }
public string FolderFour
{ get; set; }
public string FolderFive
{ get; set; }
}

然后:

List<FolderBE> listFolder = new List<FolderBE>();

FolderBE folder = new FolderBE();
folder.FolderOne = "one";
folder.FolderTwo = "two";
folder.FolderThree = "three";

listFolder.Add(folder);

folder.FolderFour = "four";

然后listFolder里的一条数据的FolderFour也会变成"four";

所以我们在使用它时要这样:

List<FolderBE> listFolder = new List<FolderBE>();

FolderBE folder = new FolderBE();

folder.FolderOne = "one";

folder.FolderTwo = "two";

folder.FolderThree = "three";

listFolder.Add(folder);

folder = new FolderBE();

folder.FolderOne = "one";

folder.FolderTwo = "two";

folder.FolderThree = "three";

folder.FolderFour = "four";

listFolder里面的数据 FolderFour不会变成"four"

最近发现,如果有误,请告诉我.