TensorFlow与flask打造手写体数字识别

过程中出现的问题：

C:\Users\123\Anaconda3\envs\TF_2C\python.exe D:/python/mnist_demotest/main.py
 * Serving Flask app "main" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 151-778-155
 * Running on http://0.0.0.0:8889/ (Press CTRL+C to quit)

原因：这是一个开发服务器。不要在生产部署中使用它。使用生产的WSGI服务器

WSGI（Python Web Server Gateway Interface）：服务器网关接口。Web服务器和Web应用程序或框架之间的一种简单而通用的接口。

解决方法：重新定义main.py中的启动地址host：127.0.0.1，然后重新运行main.py

得到如下的结果：

C:\Users\123\Anaconda3\envs\TF_2C\python.exe D:/python/mnist_demotest/main.py
 * Serving Flask app "main" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 151-778-155
 * Running on http://127.0.0.1:8889/ (Press CTRL+C to quit)
127.0.0.1 - - [02/Mar/2020 10:37:24] "GET /favicon.ico HTTP/1.1" 404 -
127.0.0.1 - - [02/Mar/2020 10:37:24] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [02/Mar/2020 10:37:24] "GET /static/css/bootstrap.min.css HTTP/1.1" 200 -
127.0.0.1 - - [02/Mar/2020 10:37:24] "GET /static/js/jquery.min.js HTTP/1.1" 200 -
127.0.0.1 - - [02/Mar/2020 10:37:24] "GET /static/js/main.js HTTP/1.1" 200 -
[0.5489745140075684,
 2.821251996465435e-07,
 0.3152564465999603,
 0.00017505102732684463,
 0.00024881394347175956,
 0.13371458649635315,
 0.0013003373751416802,
 0.00025784692843444645,
 7.167013245634735e-05,
 4.361908736427722e-07]
[0.15248361229896545,
 0.004997850861400366,
 0.35837864875793457,
 0.00877372082322836,
 0.17417296767234802,
 0.20331420004367828,
 0.05511804297566414,
 0.025098957121372223,
 0.017215833067893982,
 0.00044615677325055003]
127.0.0.1 - - [02/Mar/2020 10:37:36] "POST /api/mnist HTTP/1.1" 200 -
[0.05925741046667099,
 1.0508994563451779e-07,
 0.14101934432983398,
 0.046733517199754715,
 0.01122485101222992,
 0.07238084077835083,
 0.00029219171847216785,
 0.6671772599220276,
 0.0015083561884239316,
 0.0004060677019879222]
[0.005734917242079973,
 0.004705632571130991,
 0.18256424367427826,
 0.04478409141302109,
 0.5811722874641418,
 0.01679237186908722,
 0.008429295383393764,
 0.14248701930046082,
 0.011746295727789402,
 0.0015839891275390983]
127.0.0.1 - - [02/Mar/2020 10:37:45] "POST /api/mnist HTTP/1.1" 200 -