初步的先做一個可以收發訊息的bot
使用的python檔案為app.py
( 程式碼參考： https://github.com/LukeHong/line_bot_echo )
有稍微修改了一下
1.打開app.py，完整的程式碼如下

from flask import Flask, request, abort

from linebot import (
    LineBotApi, WebhookHandler
)
from linebot.exceptions import (
    InvalidSignatureError
)
from linebot.models import (
    MessageEvent, TextMessage, TextSendMessage,
)

app = Flask(__name__)


line_bot_api = LineBotApi('YOUR_LineBot_Channel access token')
handler = WebhookHandler('YOUR_LineBot_Channel secret')

@app.route("/", methods=['GET'])
def hello():
    return "Hello World!"

@app.route("/", methods=['POST'])
def callback():
    # get X-Line-Signature header value
    signature = request.headers['X-Line-Signature']

    # get request body as text
    body = request.get_data(as_text=True)
    print("Request body: " + body, "Signature: " + signature)
    # handle webhook body
    try:
        handler.handle(body, signature)
    except InvalidSignatureError:
       abort(400)

    return 'OK'


@handler.add(MessageEvent, message=TextMessage)
def handle_message(event):
    msg = event.message.text
    print(msg)
    msg = msg.encode('utf-8')
    line_bot_api.reply_message(event.reply_token,TextSendMessage(text=event.message.text))

if __name__ == "__main__":
    app.run(debug=True,port=80)

以下兩步驟為說明

2.說明一下收發訊息的部分
這是收訊息的部分

收到的訊息也可以在cmd中很清楚的看到整個訊息事件

3.而發出的訊息，目前是收到什麼內容就回覆什麼

4.測試一下