pythontips（2）：hasattr的用法

　　

class Xiaorui:
    def __init__(self):
        self.name = 'xiaorui'

    def setName(self, name=''):
        if name.strip():
            self.name = name

    def getName(self):
        return self.name

    def greet(self):
        print("Hello, i'm %s" % self.name)

foo = Xiaorui()

if(hasattr(foo, 'setName')):
    print(foo.setName())

if(hasattr(foo, 'getName')):
    print(foo.getName())

if(hasattr(foo, 'setName')):
    print(foo.setName('wcf'))

if(hasattr(foo, 'getName')):
    print(foo.getName())