## 演示影片：[https://developer.aliyun.com/live/249772](https://developer.aliyun.com/live/249772)
## 一、Serverless簡介
Serverless，中文意思是“無伺服器”，所謂的無伺服器並非是說不需要依靠伺服器等資源，而是說開發者再也不用過多考慮伺服器的問題，可以更專注在產品程式碼上，同時計算資源也開始作為服務出現，而不是作為伺服器的概念出現。
### 1.Serverless架構
主要包含兩部分：Baas和Faas，通常位於雲端，使用時不需要關注最底層的伺服器。
Baas（後端即服務：Backend as a Service）包括物件儲存、雲資料庫、API閘道器、訊息推送等。
Faas（函式即服務：Functions as a Service）對計算能力進行了抽象，可以在無需管理伺服器的情況下響應事件。
### 2.Serverless三大應用場景
場景一：事件觸發場景，即有事件觸發時才會執行。
場景二：流量突發場景，遇到突發大流量情況時，Serverless架構下按需載入，彈性伸縮，節省資源，負載均衡。
場景三：大資料處理場景，使用者只需要上傳核心程式碼到函式計算，就可以快速完成整個工作。
### 3.Serverless的優勢
傳統架構下，面對大流量場景，需要增加機器或者對機器升級，運維較為困難。面對高峰和低谷，無法做到按需使用，成本較高。
Serverless架構下，開發者只需專注程式碼開發，無需在各個雲資源控制檯手動開通服務和配置管理，並能夠根據業務請求自動進行彈性伸縮；支援使用者按需付費，成本較低；開發週期快，很大程度上提升了開發、部署的效率。
具體可以檢視阿里雲相關文件 [https://developer.aliyun.com/group/serverless](https://developer.aliyun.com/group/serverless)
## 二、Python實現傳送郵件
```python
import requests
import yagmail   # 此模組用於發郵件
import schedule  # 此模組用於計劃任務
from bs4 import BeautifulSoup
import re

ran = 0
url = 'https://tianqi.2345.com/cixian1d/70177.htm'  # 定義天氣預報的url
loveurl = 'https://www.guaze.com/juzi/23389.html'  # 定義情話的url
def email():
    global ran      # 將ran變數宣告為全域性變數
    web = requests.get(url)
    # print(web.text)

page = BeautifulSoup(web.text,"html.parser")

# print(ran)

# print(love[ran])

weather = page.find("div",class_="real-today")
    # print(weather.text)

web2 = requests.get(loveurl)
    web2.encoding = 'gb2312'
    page = BeautifulSoup(web2.text, "html.parser")

div = page.find('div', class_="content")

div = str(div.text)
    # print(div)
    grep = re.compile(r"\d+、(.*)")
    content = grep.findall(div)
    # print(content)

# email函式內的內容是爬取天氣和情話的，具體的地址天氣你可以更換url

yag = yagmail.SMTP(
        host='smtp.qq.com', user='xxxxxxx@qq.com',   # 如過用的是qq郵箱就寫smtp.qq.com，如果是163就寫smtp.163.com
        password='xhaztrwpjffpbdhh', smtp_ssl=True       # 授權碼在qq郵箱裡開啟smtp就會生成一個
    )
    weather = [weather.text,"每日情話:",content[ran],    # 定義傳送內容
               yagmail.inline(r"/.love.jpg")    # 附件圖片，不發圖片可以刪掉
               ]
    yag.send(
        to=['xxxxxxxxx@qq.com'],
        subject='早鴨',           # 郵件主題
        contents=weather          # 傳送的內容為上面定義的weather，其中weather.text是天氣預報，content[ran]是情話
    )
    print("傳送完成")
    ran += 1

schedule.every().day.at("05:21").do(email)      # 每天5點20分執行函式email0
#schedule.every(10).seconds.do(email)  #每10秒執行一下函式email的內容，我這裡用於測試
while True:
    schedule.run_pending()
```
## 三、部署到阿里雲Serverless，實現自動傳送
### 1.登入到阿里雲首頁
![image-20220701202818857.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137474912-b14ec072-a4a4-4f78-9d19-42456bd9d0c4.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=904&id=WNinE&margin=%5Bobject%20Object%5D&name=image-20220701202818857.png&originHeight=904&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u78b49507-7db7-4cee-8266-eaf3ba2aea7&title=&width=1920)
### 2.選擇產品->彈性計算->Serverless->函式計算FC
![image-20220701202913872.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137474922-ecbe7e1e-8b41-4681-a1d0-d0e644546e65.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=900&id=z4vPH&margin=%5Bobject%20Object%5D&name=image-20220701202913872.png&originHeight=900&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u5b4f5a5f-eca7-4534-8196-ae8f23fb84b&title=&width=1920)
### 3.進入控制檯->服務及函式->建立函式
![image-20220701203133969.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137474913-1ddefb46-b6ee-488d-bee7-e178b92df121.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=904&id=TnSDe&margin=%5Bobject%20Object%5D&name=image-20220701203133969.png&originHeight=904&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u51189b29-5869-4aa5-beed-3b117127102&title=&width=1920)
![image-20220701203309597.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137474935-b04b6446-3cfa-461e-ae31-8289a6124efe.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=899&id=yKmQe&margin=%5Bobject%20Object%5D&name=image-20220701203309597.png&originHeight=899&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=ue931424d-91f4-4df8-9585-1b73bb1c543&title=&width=1920)
![image-20220701203504468.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137474955-ff7a099d-04dd-49c8-bc34-03ab1886305d.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=894&id=ANMVs&margin=%5Bobject%20Object%5D&name=image-20220701203504468.png&originHeight=894&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=ua371a1c1-342d-4da6-a92a-8ea6c6ffc12&title=&width=1920)
![image-20220701203546979.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137475648-830b7b99-d353-413c-b75e-e52e27d32395.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=895&id=n3lrZ&margin=%5Bobject%20Object%5D&name=image-20220701203546979.png&originHeight=895&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u01d01b12-88b5-4465-a76b-6f23def1e56&title=&width=1920)
![image-20220701203657754.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137476629-fb9589d5-a7a6-4398-92dd-d21c163eee40.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=896&id=kGydG&margin=%5Bobject%20Object%5D&name=image-20220701203657754.png&originHeight=896&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=ub888bd3f-88eb-4ac0-a976-4abbf19382f&title=&width=1920)
### 4.上傳程式碼->上傳資料夾->選擇資料夾->儲存並部署
![image-20220706181040181.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137476568-ec20783a-6267-48a8-8891-78e57fb85401.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=896&id=u1y9c&margin=%5Bobject%20Object%5D&name=image-20220706181040181.png&originHeight=896&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u9ec5b3f0-484d-4190-844a-7bcaa524c83&title=&width=1920)
![image-20220706181236172.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137476671-297ebf63-0685-47ea-8fbf-55efaed3f711.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=535&id=oUvOJ&margin=%5Bobject%20Object%5D&name=image-20220706181236172.png&originHeight=535&originWidth=1058&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u9465d190-59ff-4723-9cad-fe9f5f55414&title=&width=1058)![image-20220706181318098.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137476718-c8b084ed-6752-4317-9500-665502061601.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=592&id=oU5za&margin=%5Bobject%20Object%5D&name=image-20220706181318098.png&originHeight=592&originWidth=1314&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u082170cb-1e32-4478-9268-f91bf026950&title=&width=1314)
![image-20220706181414524.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137477294-3ae0ac97-3a2c-4e78-a89b-93c999655f1e.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=528&id=zvH19&margin=%5Bobject%20Object%5D&name=image-20220706181414524.png&originHeight=528&originWidth=1086&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u7dba3d02-ab3b-40ea-8173-c27744d6086&title=&width=1086)
### 5.函式配置->編輯環境資訊->修改函式入口
![image-20220706182415671.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137477733-dfbbc057-2631-4975-929a-0bf135900225.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=849&id=JTG8o&margin=%5Bobject%20Object%5D&name=image-20220706182415671.png&originHeight=849&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u5fc3436f-18ab-4e15-b4b6-8088ff83ec1&title=&width=1920)![image-20220706182534216.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137477913-1d31a2de-2ae6-432c-984c-7da88fe6a90b.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=829&id=pxuIg&margin=%5Bobject%20Object%5D&name=image-20220706182534216.png&originHeight=829&originWidth=1252&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=uf05743de-e8f1-4b36-b95b-bf467a3cdd3&title=&width=1252)
### 6.新增觸發器，實現每日定時傳送
觸發器管理->建立觸發器->定時觸發器->填寫名稱和指定時間
![image-20220706184028003.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137478340-c53353c0-cd3d-4d4e-a30e-ae84a84d7f10.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=836&id=ltHok&margin=%5Bobject%20Object%5D&name=image-20220706184028003.png&originHeight=836&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u00a812f3-6c61-48bf-992e-64b0989028c&title=&width=1920)![image-20220706183941738.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137478320-01048170-b9a3-4cbb-8ae4-ed8af722b3bc.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=824&id=KBT4V&margin=%5Bobject%20Object%5D&name=image-20220706183941738.png&originHeight=824&originWidth=800&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u00093987-9bad-425c-b323-f4662417437&title=&width=800)
![image-20220706185307405.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137478479-c6c652e6-66b5-44e1-b426-edbd1d4758fd.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=438&id=EvxHd&margin=%5Bobject%20Object%5D&name=image-20220706185307405.png&originHeight=438&originWidth=1917&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u002e67ac-77ce-4107-9aa4-8ce7680093b&title=&width=1917)
### 7.匯入依賴並部署
先在終端執行以下三條命令，匯入專案所需要的依賴
```python
pip3 install yagmail -t .
pip3 install schedule -t .
pip3 install bs4 -t .
```
![image-20220706181742559.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137479596-05d043ad-99ea-46ad-827c-bd3b08b01908.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=693&id=myn9q&margin=%5Bobject%20Object%5D&name=image-20220706181742559.png&originHeight=693&originWidth=1889&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u593970c6-4470-47aa-968f-296228b5f92&title=&width=1889)
點選右上角儲存並部署
![image-20220706182019285.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137479659-ff8f3f17-10db-4c53-9987-53a1700e0929.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=690&id=hLBOn&margin=%5Bobject%20Object%5D&name=image-20220706182019285.png&originHeight=690&originWidth=1888&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u763baca3-13f1-4e63-85ec-8654bef9bca&title=&width=1888)
## 四、效果展示
點選左上角測試函式，然後透過實時日誌檢視執行結果。
![image-20220706182226604.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137480067-3bc89707-305d-4f31-a0a6-a12cbc0e0cd2.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=835&id=XiEKh&margin=%5Bobject%20Object%5D&name=image-20220706182226604.png&originHeight=835&originWidth=1920&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=uc067a5b7-fb9e-4eaa-a2e4-6afa308e257&title=&width=1920)![image-20220706182732131.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137480211-7ac2c39e-33e0-435d-bc28-68178856ad1e.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=905&id=JP3Gh&margin=%5Bobject%20Object%5D&name=image-20220706182732131.png&originHeight=905&originWidth=1907&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=uce64bd16-4d45-4dd1-8e6c-004eb0702f5&title=&width=1907)
![image-20220701211458910.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137480199-641f59e1-934f-4c92-afd1-c18ce7cef199.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=758&id=lMvu7&margin=%5Bobject%20Object%5D&name=image-20220701211458910.png&originHeight=758&originWidth=1674&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u82b6ab55-06a1-4d86-833b-88a5f468a8c&title=&width=1674)
![image-20220706183510459.png](https://intranetproxy.alipay.com/skylark/lark/0/2022/png/22456429/1658137481358-23e648e4-eb4f-42ea-9ec9-e9002efcc977.png#clientId=u706577ae-5c82-4&crop=0&crop=0&crop=1&crop=1&height=892&id=MPdjB&margin=%5Bobject%20Object%5D&name=image-20220706183510459.png&originHeight=892&originWidth=678&originalType=binary&ratio=1&rotation=0&showTitle=false&status=done&style=none&taskId=u476415c4-9ed2-4a56-bc85-3030497222f&title=&width=678)
## 五、總結
這次實戰是對Serverless的一次深刻的理解，收穫技術的同時也提升了自己的學習能力。由於目前正在準備考研，就好久沒有更新關於自學技術的文章，這回藉著阿里雲官方評測活動也去學一學火熱的 Serverless 無服務架構的技術和思想，在這裡分享這個當下流行的技術，然後結合著一些個人淺顯的探索，希望能和大佬們共同學習成長！??

Serverless實戰——2分鐘，教你用Serverless每天給女朋友自動發土味情話

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