python Class

#!/usr/bin/python
#coding=gb2312 

class Worker:
    def __init__(self,name,pay):
        self.name=name;
        self.pay=pay;
    def lastName(self):
        return self.name.split()[0];
    def giveRaise(self,percent):
        self.pay*=(1.0+percent);
        
bob=Worker('ken', 5000000);
print bob.lastName();
print bob.giveRaise(.10);
print bob.pay;