我正在使用以下正则表达式:
ExpenseId
匹配以下字符串的月份:
....
maintenance ObjMaintenance = new maintenance
{
MaintenanceId = Guid.NewGuid(),
....
};
foreach (var i in TVM.Expenses)
{
i.ExpenseId = Guid.NewGuid(); // add this
ObjMaintenance.Expenses.Add(i);
}
db.maintenances.Add(ObjMaintenance);
db.SaveChanges();
它的作用......差不多:
(?:-)[0-9]{2}(?=-)
包括左派宣传。如何仅匹配2015-11-24T06:46:43.383Z
(两位数字)?
答案 0 :(得分:2)
字边界起作用:
"2015-11-24T06:46:43.383Z".match(/\b\d{2}\b/)[0]
#=> "11"
如果必须是连字符:
"2015-11-24T06:46:43.383Z".match(/-(\d{2})-/)[1]
#=> "11"
答案 1 :(得分:0)
不要使用RegEx ,请在JavaScript中使用var month = new Date('2015-11-24T06:46:43.383Z').getMonth();
。
getMonth
请注意,月份是从零开始的索引,因此'2015-11-24T06:46:43.383Z'.match(/-([0-9]{2})-/)[1];
将返回少于过去月份的月份。
如果仍然想要使用正则表达式,请使用捕获组
class CategoryForm(forms.ModelForm):
class Meta:
model = models.Category
exclude = ()
form = CategoryForm
class CategoryAdmin(admin.ModelAdmin):
list_display = ['department','name']
list_filter = ['department','name']
def get_form(self, request, obj=None, **kwargs):
form = super(CategoryAdmin, self).get_form(request, obj=None, **kwargs)
form.base_fields['department'].queryset = Department.objects.filter(
name = request.user.customuser.department.name)
return form