如何在 if-block 之外使用 if-block 的值？ [复制]

Question

我想在函数外部从if-block 访问几个变量

例如：我想使用signin，user

@app.route('/signup', methods=['GET', 'POST'])
def register():
    form1 = Signup()
    if form1.validate_on_submit():
        signin = auth_py.create_user_with_email_and_password(form1.email_address.data, form1.password.data)
        user = auth_py.send_email_verification(signin['idToken'])  # for email verification

        name = form1.name.data
        username = form1.username.data
        email_address = form1.email_address.data

        return redirect(url_for('home_page'))
    if form1.errors != {}:   # if no errors occur from validators
        for err_msg in form1.errors.values():
            print(f'there was an error creating the user {err_msg}')
    database(username, name, email_address) # problem is here
    return render_template('sign-up.html', form1=form1)

我想在database() 中使用form1.validate_on_submit() 中的name、username 和email_address，但我不知道该怎么做。

注意：主程序中还有一些代码尚未编写，因此我无法在 form1.validate_on_submit() 中调用 database() 函数

Answer 1

signin = None;
user   = None;    
    def register():
        form1 = Signup()
        if form1.validate_on_submit():
            signin = auth_py.create_user_with_email_and_password(form1.email_address.data, form1.password.data)
            user = auth_py.send_email_verification(signin['idToken'])  # for email verification
    
            name = form1.name.data
            username = form1.username.data
            email_address = form1.email_address.data
    
            return redirect(url_for('home_page'))
        if form1.errors != {}:`enter code here`

在 if 块之外定义变量，这样你就可以使用 if 块之外的变量。