从子类别页面的产品数组中获取所有品牌

def get_all_brands(products):
    brands = []
    for product in products:
        brand = product.get('brand')
        if brand not in brands:
            brands.append(brand)
    return brands

# 假设products是子类别页面的产品数组
products = [
    {'name': 'Product A', 'brand': 'Brand X'},
    {'name': 'Product B', 'brand': 'Brand Y'},
    {'name': 'Product C', 'brand': 'Brand X'},
    {'name': 'Product D', 'brand': 'Brand Z'},
]

all_brands = get_all_brands(products)
print(all_brands)

['Brand X', 'Brand Y', 'Brand Z']