Python 烧瓶窗体未获取值

所有那些打印的声明都没有给我任何信息。请帮我解决这个问题好吗

语法中存在一个问题，这就是它无法从HTML表单中获取值的原因。尝试使用下面提到的代码

@app.route("/signup",methods=['GET','POST'])
def signup():
    email = request.form.get('InputEmail')
    password = request.form.get('InputPassword')
    confirm_password = request.form.get('InputConfirmPassword')
    print str(email)
    print str(password)
    print str(confirm_password)
    return "You have signed up!"

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在上面的代码中，它将首先呈现模板“html_file.html”。当我们提交表单时，它将生成一个POST请求。之后，它将进入if块，您的逻辑将被执行。

那么，当您打印时是有错误，还是只打印空白？

@app.route("/signup",methods=['GET','POST'])
def signup():
    email = request.form.get('InputEmail')
    password = request.form.get('InputPassword')
    confirm_password = request.form.get('InputConfirmPassword')
    print str(email)
    print str(password)
    print str(confirm_password)
    return "You have signed up!"

@app.route("/signup",methods=['GET','POST'])
def signup():
    if request.method == "POST":
        email = request.form['InputEmail']
        password = request.form['InputPassword']
        confirm_password = request.form['InputConfirmPassword']
        print str(email)
        print str(password)
        print str(confirm_password)
        return "You have signed up!"
    return render_template("html_file.html")