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 on_fuzzing_range_end_changed(self, value: int):
        self.ui.sBAddRangeStart.setMaximum(value - 1)
        self.ui.sBAddRangeStep.setMaximum(value - self.ui.sBAddRangeStart.value())