Question

app.py 这是我的app.py

from flask import Flask, url_for, request, render_template

app = Flask(__name__)

@app.route("/")
def index():
        return render_template("index.html")



@app.route("/check", methods = ["POST"])
def check():
    food = request.form.get("food")
    return render_template("check.html",food = food)

layout.html 这是我的html的布局

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>{% block title %}{% endblock %}</title>
</head>
<body>
    {% block body %}
    {% endblock %}
</body>
</html>

index.html 索引是从layout.html扩展而来的，其格式为文本

{% extends 'layout.html' %}
{% block title %}Shazam for Food{% endblock %}

{% block body %}

<div class="form">
<form action="{{url_for('check')}}" method="POST">
    <input type="text" name="food" placeholder="Enter a food name">
    <button type="submit">submit</button>
</form>
</div>


{% endblock %}

check.html 检查文本是否为热狗，是否提供类似图片

{% extends 'layout.html' %}

{% block title %}Shazam for Food{% endblock %}

{% block body %}
<div class="result">

    {% if food is "hotdog" %}
    <figure>
    <img src="{{url_for('static', filename='hotdog.jpg')}}" alt="hotdog">
    <figcaption>Hot Dog</figcaption>
    </figure>
    {% else %}
    <figure>
        <img src="{{url_for('static', filename='nothotdog.jpg')}}" alt="nothotdog">
        <figcaption>Not Hot Dog</figcaption>
    </figure>
    {% endif %}

</div>
{% endblock %}

代码显示 jinja2.exceptions.TemplateSyntaxError：预期令牌'name'，得到了'string'

jinja2.exceptions.TemplateSyntaxError：预期令牌“名称”，得到了“字符串”

0 个答案: