# 創(chuàng)建一個(gè)List
L = ["張三", "李四", "王五", "趙六", "錢(qián)七"]

# 訪問(wèn)元素
print(L[0])  # 張三
print(L[1])  # 李四

L = ["張三", "李四", "王五", "趙六", "錢(qián)七"]

# 取前3個(gè)
print(L[0:3])  # ['張三', '李四', '王五']
print(L[:3])   # 省略開(kāi)頭，效果相同

# 取中間
print(L[1:3])  # ['李四', '王五']

# 取倒數(shù)2個(gè)
print(L[-2:])  # ['趙六', '錢(qián)七']

# 生成0-99的列表
numbers = list(range(100))

print(numbers[:10])      # 前10個(gè)
print(numbers[-10:])     # 后10個(gè)
print(numbers[:10:2])    # 前10個(gè)，每隔1個(gè)取1個(gè)
print(numbers[::5])      # 每5個(gè)取1個(gè)
# 輸出：[0, 5, 10, 15, 20, 25, 30, 35, 40, 45, ...]

# 直接使用strip()
text = "   hello world   "
print(text.strip())  # "hello world"

# 字符串也支持切片
print('ABCDEFG'[:3])   # "ABC"
print('ABCDEFG'[::2])  # "ACEG"

def my_trim(s):
    left = 0
    right = len(s)
    
    # 左指針跳過(guò)開(kāi)頭空格
    while left < right and s[left] == ' ':
        left += 1
    
    # 右指針跳過(guò)結(jié)尾空格
    while right > left and s[right - 1] == ' ':
        right -= 1
    
    # 切片截取
    return s[left:right]

print(my_trim("   hello world "))  # "hello world"

from openai import OpenAI

# 初始化客戶(hù)端
client = OpenAI(
    api_key="your-api-key",
    base_url="https://api.deepseek.com/v1"  # 以DeepSeek為例
)

def get_response(prompt):
    response = client.chat.completions.create(
        model="deepseek-chat",
        messages=[{"role": "user", "content": prompt}]
    )
    return response.choices[0].message.content
prompt = """
Consideration product: 工廠現(xiàn)貨PVC充氣青蛙夜市地?cái)偀豳u(mài)充氣玩具發(fā)光蛙兒童水上玩具

1. Compose human readable product title used on Amazon in english within 20 words.
2. Write 5 selling points for the products in Amazon
3. Evaluate a price range for this product in U.S.

Output the result in json format with three properties called title, selling_points and price_range
"""

result = get_response(prompt)
print(result)

{
  "title": "Inflatable PVC Glow Frog Toy for Night Market, Water Play, and Kids' Outdoor Fun",
  "selling_points": [
    "Bright LED glowing design attracts attention at night, perfect for night markets and evening beach parties.",
    "Made from durable, non-toxic PVC material safe for children and resistant to punctures during water play.",
    "Lightweight and easy to inflate/deflate for convenient storage and portability to pools, lakes, or backyards.",
    "Versatile toy suitable for both land and water use, including bath time, swimming pools, and outdoor play.",
    "Fun frog shape with vibrant colors enhances imaginative play and encourages active outdoor entertainment for kids."
  ],
  "price_range": "$9.99 – $14.99"
}