class ShoppingCart:
    def __init__(self):
        self.items = []

    def add_item(self, item):
        self.items.append(item)

    def remove_item(self, item):
        if item in self.items:
            self.items.remove(item)

    def get_total_price(self):
        total_price = 0
        for item in self.items:
            total_price += item['price']
        return total_price

    def display_cart(self):
        for item in self.items:
            print(f"{item['name']}: {item['price']}")

# 示例
cart = ShoppingCart()
cart.add_item({'name': '蘋果', 'price': 5})
cart.add_item({'name': '香蕉', 'price': 3})
cart.display_cart()
print(f"總價：{cart.get_total_price()}元")
cart.remove_item('香蕉')
cart.display_cart()