class Teacher:
    def setid(self,id):
        self.id=id
    def getid(self):
        return self.id
    def setName(self,name):
        self.name=name
    def getName(self):
        return self.name
    def setaddr(self,addr):
        self.addr=addr
    def getaddr(self):
        return self.addr
    def setsal(self,sal):
        self.sal=sal
        
