(flask_venv) D:\DjangoProject\flask_test>flask db init Traceback (most recent call last): File "c:\users\daiyongdong0520\appdata\local\programs\python\python37\Lib\runpy.py", line 193, in _run_module_as_main "__main__", mod_spec) File "c:\users\daiyongdong0520\appdata\local\programs\python\python37\Lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "d:\virtualenv\flask_venv\Scripts\flask.exe\__main__.py", line 7, in <module> File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 966, in main cli.main(prog_name="python -m flask" if as_module else None) File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 586, in main return super(FlaskGroup, self).main(*args, **kwargs) File "d:\virtualenv\flask_venv\lib\site-packages\click\core.py", line 717, in main rv = self.invoke(ctx) File "d:\virtualenv\flask_venv\lib\site-packages\click\core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "d:\virtualenv\flask_venv\lib\site-packages\click\core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "d:\virtualenv\flask_venv\lib\site-packages\click\core.py", line 956, in invoke return ctx.invoke(self.callback, **ctx.params) File "d:\virtualenv\flask_venv\lib\site-packages\click\core.py", line 555, in invoke return callback(*args, **kwargs) File "d:\virtualenv\flask_venv\lib\site-packages\click\decorators.py", line 17, in new_func return f(get_current_context(), *args, **kwargs) File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 425, in decorator with __ctx.ensure_object(ScriptInfo).load_app().app_context(): File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 392, in load_app app = locate_app(self, import_name, None, raise_if_not_found=False) File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 257, in locate_app return find_best_app(script_info, module) File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 83, in find_best_app app = call_factory(script_info, app_factory) File "d:\virtualenv\flask_venv\lib\site-packages\flask\cli.py", line 117, in call_factory return app_factory(script_info) File "D:\DjangoProject\flask_test\app\__init__.py", line 23, in create_app app.config.from_object(config[config_name]) KeyError: <flask.cli.ScriptInfo object at 0x000001638AC164E0>
报错原因：
没有指向指向启动文件 flask_test.py
添加一个环境变量，解决
set FLASK_APP=flask_test.py