如何将按钮重定向到 Flask 中的根 url? [英] How to redirect a button to root url in flask?

问题描述

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

我的flaskPage.py文件中有上述功能，我想建立一个从下面显示的返回主页"按钮到上面的根网址的链接.但是，url_for 不接受空字符串作为参数并抛出如下错误

I have the above function in my flaskPage.py file and I want to make a link from the Back to Home button shown below to the above root url. However, url_for doesn't accept empty string as an argument and throws an error as follows

<button formaction="{{ url_for('') }}">Back to Home</button>

错误

Could not build url for endpoint ''

提前致谢.

推荐答案

<form method="get" action="{{url_for('index')}}">
<button> Back to Home </button>
</form>

这就解决了.

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