Python – Flask-Webentwicklung lernen Kapitel 4 validate_on_submit hat einen Fehler und keine Attribute festgestellt

Question

app.py代码如下:

aus flask import Flask, render_template
aus flask_bootstrap import Bootstrap
aus flask_wtf import Form
aus wtforms import StringField, SubmitField, validators
aus wtforms.validators import DataRequired

form表单代码

@app.route('/')
def hello_world():
    name = None
    form = NameForm()
    if form.validata_on_submit():
        name = form.name.data
        form.name.data = ''
    return render_template("index.html",form=form,name=name)

    
   class类
   
   
 class NameForm(Form):
    name = StringField('What is your name?', validators=[DataRequired()])
    submit = SubmitField('Submit')
       
    
bug
builtins.AttributeError
AttributeError: 'NameForm' object has no attribute 'validata_on_submit'
我在网上试过其他的方法没用，我也不清楚哪里有问题。
希望大家能帮帮我！！！

Answer 1

是 validate 好吗！为什么不看错误提示？