我正在尝试为我的 Flask 应用程序使用模板，但由于某些原因，即使我在两个模板文件中指定了路径并包含 {% block content %}{% endblock content %} ，模板也无法工作。我很困惑为什么这行不通。这里出了什么问题？
/模板/base.html
<!DOCTYPE html>
<html lang="en">
<head>
<title>Class Project</title>
<link rel="stylesheet" href="../style.css" type="text/css" media="screen" title="no title" charset="utf-8">
</head>
<body class="background-color">
<div class="container">
<nav>
<a href="/">Display All Songs</a>
<a href="/add-songs">Add Songs</a>
<a href="/delete-songs">Delete Songs</a>
<a href="/search-songs">Search Songs</a>
</nav>
<main>{% block content %}{% endblock content %}</main>
</div>
</body>
</html>
/模板/home.html
{% extends 'base.html' %}
{% block content %}{% endblock content %}
{% for song in song_list%}
<div>
<p>Music Name: {{song["song_name"]}}</h1>
<p>user: {{song["user_name"]}}</p>
</div>
<br>
{% endfor %}
应用程序.py
import pymongo
from flask import Flask, request, render_template, redirect
app = Flask(__name__)
# Views
@app.route("/")
@app.route("/<user_name>")
def index():
return render_template("home.html")
def display_songs(user_name=None):
song_list = None
if user_name:
song_list = list(db.songs.find({"user_name": user_name}))
else:
song_list = list(db.songs.find({}))
return render_template('home.html', song_list=song_list)
@app.route("/add-songs")
def add_songs():
return render_template("addSongs.html")
@app.route("/delete-songs")
def delete_songs():
return render_template("deleteSongs.html")
@app.route("/search-songs")
def search_songs():
return render_template("searchSongs.html")
# Form methods
@app.route("/api/add-songs", methods=["POST"])
def addSongs():
user_name = request.form["user_name"]
song_name = request.form["song_name"]
db.songs.insert_one({"user_name": user_name, "song_name": song_name})
return redirect("/")
@app.route("/api/delete-songs", methods=["POST"])
def deleteSongs():
user_name = request.form["user_name"]
song_name = request.form["song_name"]
db.songs.delete_one({"user_name": user_name, "song_name": song_name})
return redirect("/")
@app.route("/api/search-songs", methods=["POST"])
def searchSongs():
user_name = request.form["user_name"]
return redirect("/" + user_name)
# Connecting to local host
connection = pymongo.MongoClient("mongodb://localhost:27017")
db = connection["test_database"]
{% block content %}{% endblock content %}
旨在包含将注入到 base.html 的
{% block content %}{% endblock content %}字符串中的 html 代码。您需要移动模板末尾的结束标签
{% endblock content %}。
home.html
：
{% extends 'base.html' %}
{% block content %}
{% for song in song_list%}
<div>
<p>Music Name: {{song["song_name"]}}</h1>
<p>user: {{song["user_name"]}}</p>
</div>
<br>
{% endfor %}
{% endblock content %}