Python适当的使用 continue

# name_price: 产品名称(str)到价格(int)的映射字典
# name_color: 产品名字(str)到颜色(list of str)的映射字典
name_price = {
    "Python 核心技术与实战": 2999, 
    "Django 入门与实战": 9999, 
    "Python3 网络爬虫入门与实战": 7999
    }

name_color = {
    "Python 核心技术与实战": ["red", "blue", "yellow"],
    "Django 入门与实战": ["black", "blue", "yellow"],
    "Python3 网络爬虫入门与实战": ["black", "green", "yellow"],
}

# 找出价格小于 3000，并且颜色不是红色的所有产品名称和颜色的组合。
for name, price in name_price.items():
    if price < 3000:
        if name in name_color:
            for color in name_color[name]:
                if color != "red":
                    print('name: {}, color: {}'.format(name, color))
    else:
        print('name: {}, color: {}'.format(name, 'None'))

for name, price in name_price.items():
    if price < 3000:
        if name in name_color:
            for color in name_color[name]:
                if color == "red":
                    pass
                else:
                    print('name: {}, color: {}'.format(name, color))
    else:
        print('name: {}, color: {}'.format(name, 'None'))


for name, price in name_price.items():
    if price >= 3000:
        continue
    if name not in name_color:
        print('name: {}, color: {}'.format(name, 'None'))
        continue
    for color in name_color[name]:
        if color == 'red':
            continue
        print('name: {}, color: {}'.format(name, color))