models.Tb1.objects.filter(id__lt=10, id__gt=1) # 獲取id大于1 且 小于10的值 
 
models.Tb1.objects.filter(id__in=[11, 22, 33]) # 獲取id等于11、22、33的數(shù)據(jù) 
models.Tb1.objects.exclude(id__in=[11, 22, 33]) # not in
 
models.Tb1.objects.filter(name__contains="ven") 
models.Tb1.objects.filter(name__icontains="ven") # icontains大小寫不敏感 
 
models.Tb1.objects.filter(id__range=[1, 2])  # 范圍bettwen and 
 
startswith，istartswith, endswith, iendswith　 

def query(request): 
 #查詢方法API： 
 
 #1 all方法：models.表名.objects.all() 
 book_all=models.Book.objects.all() #結(jié)果是querySet集合 
 # print(book_all) 
 
 #2 filter: models.表名.objects.filter() 
 ret=models.Book.objects.filter(title='PHP') #結(jié)果是querySet集合 
 ret2=models.Book.objects.filter(nid=1) #結(jié)果是querySet集合 
 ret3=models.Book.objects.filter(author='Alex',price=35) #結(jié)果是querySet集合,且的關(guān)系，兩個條件都要滿足 
 # print(ret) 
 # 3 get：models.表名.objects.get() 
 ret4=models.Book.objects.get(nid=3) #model對象，如果取不到值則會報錯 
 # print(ret4,ret4.price) 
 
 #4 exclude：排除條件，取非 
 ret5 = models.Book.objects.exclude(author='oldboy') 
 
 #5 values方法 
 # ret6=models.Book.objects.filter(author='Alex').values('title','price') 
 # print('ret6',ret6) 
 # #6 values_list方法 
 # ret7 = models.Book.objects.filter(author='Alex').values_list('title', 'price') 
 # print('ret7', ret7) 
 # ret8 = models.Book.objects.filter(author='Alex').values('author').distinct() 
 # print('ret8',ret8) 
 
 #雙線劃線 
 ret9 = models.Book.objects.filter(price__gt=30) 
 ret10 = models.Book.objects.filter(title__startswith='P') 
 ret11 = models.Book.objects.filter(id_lt=4,id_gt=2) #id 大于2小于4 
 
 
 print('ret10',ret10) 
 
 
 return HttpResponse("OK")