flask - 很简单的几句python代码,为什么直接Process finished with exit code 2呢?

Question

直接运行就这样了

前几天还可以的..不知道怎么突然就不行了.

求熟手帮忙看看原因.

Answer 1

flask-script To use this plug-in, enter

in the command line

python hello.py runserver

Use the pycharm function of run and just execute python hello.py without adding the runserver parameter. Therefore the script is executed without parameters.

The solution is to use the drop-down arrow of the run option, select the edit configure option, and then add it in script parameters

Answer 2

No parameters are added when running

Answer 3

Already in the prompt

usage: hello.py [-?] {runserver, shell} ...

Try it

python.exe D:\...\hello.py runserver

Or change the last line of code to

app.run()