text: from gevent import monkey
  monkey.patch_all()
  from flask import Flask, request
  from gevent import pywsgi
  import re
  from time import time
  import json
  import sync
  from flask_cors import CORS
  
  app = Flask(__name__)
  app.debug = False 
  CORS(app, supports_credentials=True)
  
  class BadRequest(Exception):
      """将本地错误包装成一个异常实例供抛出"""
      def __init__(self, message, status=400, payload=None):
          self.message = message
          self.status = status
          self.payload = payload
  
  @app.errorhandler(BadRequest)
  def handle_bad_request(error):
      """捕获 BadRequest 全局异常，序列化为 JSON 并返回 HTTP 400"""
      payload = dict(error.payload or ())
      payload['status'] = error.status
      payload['message'] = error.message
      return  json.dumps(payload), 600
  
  @app.route('/', methods=['get'])
  def index():
      start = time()
      dict={}
      sentences = request.args.get('sentences')
      sentences = sentences + '。'
      fields = re.split(r'(。|，|)', sentences)
      sentences = list(filter(None,fields[::2]))
      delimiters = fields[1::2]
      try:
          output_file = sync.synic(sentences,delimiters)
      except Exception as e:
          raise BadRequest(str(e), 600)
      dict['wav_file'] = output_file.replace('.wav', '')
      stop = time()
      dict['time'] = stop - start
      dict['status'] = 200
      return json.dumps(dict),200
  
  
  if __name__ == "__main__":
      server = pywsgi.WSGIServer(('0.0.0.0', 19877), app)
      print("start to serve")
      server.serve_forever()
  