我是flask的小白，最近在嘗試架網站，目前情況是我用ngrok把他架上去了，運行也可以運行，但一旦我想在python引入html他就給我跳Internal Server Error
from flask import Flask, request, render_template
app = Flask(__name__, static_folder="public", static_url_path="/")
# 處理路徑 / 的對應函市
@app.route("/")
def index():
return render_template("123.html")
app.run()
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>這是標題</title>
</head>
<body>
<h3>網頁的主畫面</h3>
</body>
</html>
[2023-04-09 10:23:17,502] ERROR in app: Exception on / [GET]
Traceback (most recent call last):
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\app.py", line 2528, in wsgi_app
response = self.full_dispatch_request()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\app.py", line 1825, in full_dispatch_request
rv = self.handle_user_exception(e)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\app.py", line 1823, in full_dispatch_request
rv = self.dispatch_request()
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\app.py", line 1799, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "d:\python\flask\app.py", line 10, in index
return render_template("123.html")
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\templating.py", line 146, in render_template
template = app.jinja_env.get_or_select_template(template_name_or_list)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\jinja2\environment.py", line 1081, in get_or_select_template
return self.get_template(template_name_or_list, parent, globals)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\jinja2\environment.py", line 1010, in get_template
return self._load_template(name, globals)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\jinja2\environment.py", line 969, in _load_template
template = self.loader.load(self, name, self.make_globals(globals))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\jinja2\loaders.py", line 126, in load
source, filename, uptodate = self.get_source(environment, name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\templating.py", line 62, in get_source
return self._get_source_fast(environment, template)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\johnson\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask\templating.py", line 98, in _get_source_fast
raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: 123.html
127.0.0.1 - - [09/Apr/2023 10:23:17] "GET / HTTP/1.1" 500 -
