在谷歌地图上加载标记显示地址和餐馆名称

Question

这是我的代码。问题在于加载时间。加载标记需要很长时间，有时不加载任何标记。

do
{
    int nextUserCard = kartendeck.GetARandomCard();
    userDecision = Console.ReadLine();
    Console.WriteLine("You have: " + kartendeck.ReturnCardName(nextUserCard) + " V:" + kartendeck.ReturnCardValue(nextUserCard));
    Console.WriteLine(GET THE ADDED CARD VALUE)
    Console.WriteLine("Pick? y/n");
} while (userDecision != "n");