在微信公众号配置接口，按照如下官方DEMO配置，任意输入文字，公众号会回复this is a test

但是将文字换成中文，比如部署成功！就会乱码，返回\u90e8\u7f72\u6210\u529f



官方样例：
<xml>
  <ToUserName><![CDATA[toUser]]></ToUserName>
  <FromUserName><![CDATA[fromUser]]></FromUserName>
  <CreateTime>1348831860</CreateTime>
  <MsgType><![CDATA[text]]></MsgType>
  <Content><![CDATA[this is a test]]></Content>
  <MsgId>1234567890123456</MsgId>
  <MsgDataId>xxxx</MsgDataId>
  <Idx>xxxx</Idx>
</xml>


本地代码：python：3.7
def ReplyText(toUser,fromUser,nowtime,MsgType,content):
    print(content)
    XmlForm = f"""
        <xml>
            <ToUserName><![CDATA[{toUser}]]></ToUserName>
            <FromUserName><![CDATA[{fromUser}]]></FromUserName>
            <CreateTime>{nowtime}</CreateTime>
            <MsgType><![CDATA[text]]></MsgType>
            <Content><![CDATA[{content}]]></Content>
        </xml>
        """

    return {
    "isBase64Encoded": False,
    "statusCode": 200,
    "headers": {"Content-Type": "application/json", "charset": "UTF-8"},
    "body": XmlForm
    }