def insertDomain(self, domain, indegree=0, outdegree=0):
		'''增加一个域名'''
		cur = self.conn.cursor()
		cur.execute("INSERT INTO Domains VALUES (NULL,?,?,?)", (domain, indegree, outdegree))
		# 写入到文件中
		self.conn.commit()
def setup_loader(request):
    setup_loader_modules = {pdbedit: {}}
    with pytest.helpers.loader_mock(request, setup_loader_modules) as loader_mock:
        yield loader_mock