weixin_51118163的博客

Serializer的功能 class UserInfoSerializer(serializers.Serializer): id = serializers.CharField(read_only=True) 普通字段，设置id为只读字段，不能修改 username = serializers.CharField(min_length=3,max_length=20 ,error_messages= {‘required’: ‘该字段必填’}) 显示普通字段 img = serializers.Imag