验证器= [MinValueValidator]在Django中不起作用

from django.db import models
from django.core.validators import MinValueValidator

class MyModel(models.Model):
    my_field = models.IntegerField(validators=[MinValueValidator(1)])

from django import forms
from .models import MyModel

class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = '__all__'

python manage.py makemigrations
python manage.py migrate

from django.core.validators import MinValueValidator

class MyModel(models.Model):
    my_field = models.IntegerField(validators=[MinValueValidator(1), MaxValueValidator(10)])

<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Submit</button>
</form>

# models.py
from django.db import models
from django.core.validators import MinValueValidator

class MyModel(models.Model):
    my_field = models.IntegerField(validators=[MinValueValidator(1)])

# forms.py
from django import forms
from .models import MyModel

class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel
        fields = '__all__'