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般是makemigrations时，在建立外键时会报这个错误，例如： user = models.ForeignKey(User) 加上"on\_delete...
悠悠相关 Django在根据models生成数据库表时报 missing 1 required positional argument on_delete(亲测)
code: ![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg] 1 en
相关 django报错：TypeError__init__() missing 1 required positional argument ‘on_delete‘
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相关 Django在根据models生成数据库表时报 __init__() missing 1 required positional argument: 'on_delete'
错误： TypeError: __init__() missing 1 required positional argument: 'on_delete'
相关 Django在根据models生成数据库表时报 __init__() missing 1 required positional argument: 'on_delete'
![20180301105452594][]![20180301105459991][] herobook=models.ForeignKey('BookInfo',on\_
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源码如下： from django.db import models Create your models here. class Que
相关 Django在根据models生成数据库表时报 __init__() missing 1 required positional argument: 'on_delete'
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1、错误描述 Hello World Traceback (most recent call last): File "G:\NetBeansWo
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错误如下： ![20191209133353313.png][] 原因是：在Python中，应该先对类进行实例化，然后在应用类。注意，实例化的过程是应该加括号的。 
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