tensorflow2（tf.app.run()） _Tensorflow2

要须心地收汗马，孔孟行世目杲杲。这篇文章主要讲述tensorflow2：tf.app.run()相关的知识，希望能为你提供帮助。
在很多TensorFlow公布的Demo中，都有这样的代码存在，如下，这是干什么的呢？

if __name__ == "__main__": tf.app.run()

我们来看一下源代码：

# tensorflow/tensorflow/python/platform/default/_app.py# Copyright 2015 Google Inc. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # #http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # =============================================================================="""Generic entry point script.""" from __future__ import absolute_import from __future__ import division from __future__ import print_functionimport sysfrom tensorflow.python.platform import flagsdef run(main=None): f = flags.FLAGS f._parse_flags() main = main or sys.modules[‘__main__‘].main sys.exit(main(sys.argv))

【tensorflow2（tf.app.run()）】处理flag解析，然后执行main函数，那么flag解析是什么意思呢？诸如这样的：

tf.app.flags.DEFINE_boolean("self_test", False, "True if running a self test.") tf.app.flags.DEFINE_boolean(‘use_fp16‘, False, "Use half floats instead of full floats if True.") FLAGS = tf.app.flags.FLAGS