1.建立环境变量 
2.选择环境 
3.填写脚本 
def onRequest(context, request):
  # Print url to console
  # print('request url ' + context.url)

  # Update or add a query parameter
  # request.queries['foo'] = 'bar'

  # Update or add a http header
  # request.headers['foo'] = 'bar'

  # Replace http body with a text
  # request.body = 'Hello World'

  # Map with a local file
  # request.body.file('~/Desktop/body.jso...