修改了一个display参数，Django不能启动，报错为：

django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:

ERRORS:
<class ‘myApp.admin.GradesAdmin‘>: (admin.E108) The value of ‘list_display[3]‘ refers to ‘ggirlbum‘, which is not a callable, an attribute of ‘GradesAdmin‘, or an
attribute or method on ‘myApp.Grades‘.

翻译一下：

“list_display[3]”的值是指“ggirlbum”，它不是可调用的、“GradesAdmin”属性或

“myApp.Grades”上的属性或方法。

然后我就找到错误了，全是自己手抖写错了ggirlbum：

list_display = [‘pk‘, ‘gname‘, ‘gdate‘, ‘ggirlbum‘, ‘gboynum‘, ‘isDelete‘]

改成↓↓↓↓↓↓↓↓↓↓↓↓↓

list_display = [‘pk‘, ‘gname‘, ‘gdate‘, ‘ggirlnum‘, ‘gboynum‘, ‘isDelete‘]

ERRORS: <class 'myApp.admin.GradesAdmin'>: (admin.E108) The value of 'list_display[3]'