FlaskWTFDeprecationWarning: "flask_wtf.Form" has been renamed to "FlaskForm"

今天继续学习<<flask web开发>>，做到了4.5的例子，在控制台报了：
127.0.0.1 - - [05/Jan/2018 09:08:12] "GET / HTTP/1.1" 200 -
D:/PycharmProjects/hello/hello.py:48: FlaskWTFDeprecationWarning: "flask_wtf.Form" has been renamed to "FlaskForm" and will be removed in 1.0.
  form = NameForm()

看到错误提示，大约是将Form改成FlaskForm，改完之后，错误消失！