c ++如何从链表中选择随机项

I'm experimenting with a game program. I'm trying to have an random number of items generate. The code will produce the same item multiple times. I can get away with setting up a series of switch statements that will produce multiple search areas for a player to look through, thus getting a single new random item per area, but I'd like to learn how to deal with what I'm doing wrong here. Nothing helps one learn like an error. I'm experimenting with a game program. I'm tryi