本文实现了使用阿里云《函数计算》+《短信服务》发送短信的简单功能，官方短信服务SDK功能全面，但较为冗杂，二爷精简了官方SDK，实现了一段代码（单文件）发送短信的功能。

阅读本文，你需要先了解阿里云函数计算、阿里云短信服务的基本常识。

试用本代码，需要预先在短信服务中申请短信签名、短信模板。

# -*- coding: utf-8 -*-
import uuid
from aliyunsdkcore.client import AcsClient
from aliyunsdkcore.request import RpcRequest

# 短信发送单文件轻量版(阿里云函数计算+Python3环境测试通过)，Created on 2018-06-30

#注意不要更改
REGION = "cn-hangzhou"
PRODUCT_NAME = "Dysmsapi"
DOMAIN = "dysmsapi.aliyuncs.com"

ACCESS_KEY_ID = "您在阿里云申请的ACCESS_KEY_ID"
ACCESS_KEY_SECRET = "您在阿里云申请的ACCESS_KEY_SECRET"

acs_client = AcsClient(ACCESS_KEY_ID, ACCESS_KEY_SECRET, REGION)

class SendSmsRequest(RpcRequest):
	def __init__(self):
		RpcRequest.__init__(self, 'Dysmsapi', '2017-05-25', 'SendSms')
	def get_TemplateCode(self):
		return self.get_query_params().get('TemplateCode')
	def set_TemplateCode(self,TemplateCode):
		self.add_query_param('TemplateCode',TemplateCode)
	def get_PhoneNumbers(self):
		return self.get_query_params().get('PhoneNumbers')
	def set_PhoneNumbers(self,PhoneNumbers):
		self.add_query_param('PhoneNumbers',PhoneNumbers)
	def get_SignName(self):
		return self.get_query_params().get('SignName')
	def set_SignName(self,SignName):
		self.add_query_param('SignName',SignName)
	def get_ResourceOwnerAccount(self):
		return self.get_query_params().get('ResourceOwnerAccount')
	def set_ResourceOwnerAccount(self,ResourceOwnerAccount):
		self.add_query_param('ResourceOwnerAccount',ResourceOwnerAccount)
	def get_TemplateParam(self):
		return self.get_query_params().get('TemplateParam')
	def set_TemplateParam(self,TemplateParam):
		self.add_query_param('TemplateParam',TemplateParam)
	def get_ResourceOwnerId(self):
		return self.get_query_params().get('ResourceOwnerId')
	def set_ResourceOwnerId(self,ResourceOwnerId):
		self.add_query_param('ResourceOwnerId',ResourceOwnerId)
	def get_OwnerId(self):
		return self.get_query_params().get('OwnerId')
	def set_OwnerId(self,OwnerId):
		self.add_query_param('OwnerId',OwnerId)
	def get_SmsUpExtendCode(self):
		return self.get_query_params().get('SmsUpExtendCode')
	def set_SmsUpExtendCode(self,SmsUpExtendCode):
		self.add_query_param('SmsUpExtendCode',SmsUpExtendCode)
	def get_OutId(self):
		return self.get_query_params().get('OutId')
	def set_OutId(self,OutId):
		self.add_query_param('OutId',OutId)

def send_sms(business_id, phone_numbers, sign_name, template_code, template_param=None):
	smsRequest = SendSmsRequest()
	smsRequest.set_OutId(business_id)				#设置业务请求流水号,必填
	smsRequest.set_PhoneNumbers(phone_numbers)			#短信发送的号码列表,必填
	smsRequest.set_SignName(sign_name)				#短信签名
	smsRequest.set_TemplateCode(template_code)			#申请的短信模板编码,必填
	if template_param is not None:
		smsRequest.set_TemplateParam(template_param)		#短信模板变量参数

	smsResponse = acs_client.do_action_with_exception(smsRequest)	#调用短信发送接口，返回json
	# TODO 业务处理
	return smsResponse

def handler(event, context):

	__business_id = uuid.uuid4()
	params='{"product":"糕点"}'
	return send_sms(__business_id,"13000000000","您的短信签名","您申请的短信模板",params)

执行结果数据为json格式，发送成功返回的数据:

 {
   "Message": "OK",
   "RequestId": "6C801F2D-8DC4-4F39-9CBD-F3DC0C28C21B",
   "BizId": "221005030328791139^0",
   "Code": "OK"
} 

 {
   "Message": "13135656invalid mobile number",
   "RequestId": "45614ADE-587C-4E78-97A7-71DAA2582403",
   "Code": "isv.MOBILE_NUMBER_ILLEGAL"
}