如何循环List <T>并抓取每个项目？

Question

如何循环列表并抓取每个项目？

我希望输出看起来像这样:

Console.WriteLine("amount is {0}, and type is {1}", myMoney.amount, myMoney.type);

这是我的代码:

static void Main(string[] args)
{
    List<Money> myMoney = new List<Money> 
    {
        new Money{amount = 10, type = "US"},
        new Money{amount = 20, type = "US"}
    };
}

class Money
{
    public int amount { get; set; }
    public string type { get; set; }
}

Answer 1

foreach:

foreach (var money in myMoney) {
    Console.WriteLine("Amount is {0} and type is {1}", money.amount, money.type);
}

MSDN链接

或者,因为它是一个List<T>实现索引器方法的.. [],你也可以使用普通的for循环..虽然它的可读性较低(IMO):

for (var i = 0; i < myMoney.Count; i++) {
    Console.WriteLine("Amount is {0} and type is {1}", myMoney[i].amount, myMoney[i].type);
}

Answer 2

为了完整起见,还有LINQ/Lambda方式:

myMoney.ForEach((theMoney) => Console.WriteLine("amount is {0}, and type is {1}", theMoney.amount, theMoney.type));

Answer 3

就像任何其他系列一样.随着List<T>.ForEach方法的增加.

foreach (var item in myMoney)
    Console.WriteLine("amount is {0}, and type is {1}", item.amount, item.type);

for (int i = 0; i < myMoney.Count; i++)
    Console.WriteLine("amount is {0}, and type is {1}", myMoney[i].amount, myMoney[i].type);

myMoney.ForEach(item => Console.WriteLine("amount is {0}, and type is {1}", item.amount, item.type));

Answer 4

这就是我要用更多东西写的方式functional way.这是代码:

new List<Money>()
{
     new Money() { Amount = 10, Type = "US"},
     new Money() { Amount = 20, Type = "US"}
}
.ForEach(money =>
{
    Console.WriteLine($"amount is {money.Amount}, and type is {money.Type}");
});