Django中Form的Textarea字段

开始以为是这个样子：

class BlogForm(forms.Form):
    title    = forms.CharField(required = True)
    content  = forms.Textarea()

查看文档发现是：

from django import forms

class BlogForm(forms.Form):
    title    = forms.CharField(required = True)
    content  = forms.CharField(widget=forms.Textarea)