1
下面是代码:Python的打印无
class className:
def createName(self, name):
self.name = name
def displayName(self):
return self.name
def saying(self):
print "Hello %s " % self.name
first = className()
second = className()
first.createName('Bob')
second.createName('Tony')
print first.displayName()
print second.displayName()
print 20*"_"
print first.saying()
print second.saying()
的问题如下 - 当我打电话第二种方法(说)为什么结果:
Hello Bob
None
Hello Tony
None
为什么None
?
谢谢你真是太棒了! – SakoBu 2015-04-05 00:54:20