linux-面向对象

高阶函数

函数实质是一个变量,fun -> 内存空间； func1 = fun； func1()
高阶函数:可以接受函数作为参数，或者把函数作为返回值的函数;

def fun1(var):
return var

def fun1(fun2):
…..
return fun2

In [1]: abs(-1)Out[1]: 1In [2]: a(-1)---------------------------------------------------------------------------NameError                                 Traceback (most recent call last)<ipython-input-2-c976f5e459ea> in <module>()----> 1 a(-1)NameError: name 'a' is not definedIn [3]: a = absIn [4]: a(-1)Out[4]: 1

面向对象编程

• 面向过程编程:
• 面向对象编程（OOP) Object Oriented Programming
• 面向函数编程:(lisp)

(13+10)*2-10
a = 13+10
b = a*2
c = b-10

result = jian(multi(add(13,10),2),10)
作业：通过面向对象的方式实现队列和栈的数据结构
class Stact(object):
le=[1,24,5,”asd”]
def init(self):
pass
def push(self):
item=raw_input(“请输入你想加如的内容”)
self.le.append(item)
def pop(self):
if self.le==[]:
print “none”
else:
self.le.pop(-1)
return self.le
def stack_top(self):
if not self.le==[]:
print “none”
else:
print self.le[-1]
def length(self):
d=len(self.le)
print d
def info(self):
for i in self.le:
print i

s=Stact()
s.info()
print s.pop()
s.info()
游戏：
pr=”“”
welcome ying xiong lian meng
qin
hu
an
please your role:”“”
changjing=”“”
mojiajiguan
chang ping
wangzhe
shenyuan
huoyanshan
please you choice:”“”
class People(object):
def init(self,name,age,sex,value):
self.name=name
self.age=age
self.sex=sex
self.value=value
def moji(self):

    print """    huan ying lai dao mojia jiguan    """    self.value-=100    return "\t%s,%s,%s,%s"%(self.name,self.age,self.sex,self.value)def changping(self):    print """    huan ying lai dao changping    """    self.value-=200    return "\t%s,%s,%s,%s"%(self.name,self.age,self.sex,self.value)def wangzhe(self):    print """    huan ying lai dao wangzhe    """    self.value-=150    return "\t%s,%s,%s,%s"%(self.name,self.age,self.sex,self.value)def shenyuan(self):    print """    huan ying lai dao shenyuan    """    self.value-=300    return "\t%s,%s,%s,%s"%(self.name,self.age,self.sex,self.value)def huoyan(self):    print """    huan ying lai dao huoyan    """    self.value-=500    return "\t%s,%s,%s,%s"%(self.name,self.age,self.sex,self.value)# dic={"M":moji,#      "C":changping,#       "W":wangzhe,#      "S":shenyuan,#      "H":huoyan}

qin = People(“qin”,18,”nan”,1000)
hu=People(“hu”,18,”nv”,2000)
an=People(“an”,18,”an”,2500)
while 1:
choice=raw_input(pr)
if choice==”qin”:
changjing=raw_input(changjing)
if changjing==”mojiajiguan”:
d=qin.moji()
print d
elif changjing==”changping”:
d=qin.changping()
print d
elif changjing==”wangzhe”:
d=qin.wangzhe()
print d
elif changjing==”shenyuan”:
d=qin.shenyuan()
print d
elif changjing==”huoyanshan”:
d=qin.huoyan()
print d
elif choice==”hu”:
changjing=raw_input(changjing)
if changjing==”mojiajiguan”:
d=hu.moji()
print d
elif changjing==”changping”:
d=hu.changping()
print d
elif changjing==”wangzhe”:
d=hu.wangzhe()
print d
elif changjing==”shenyuan”:
d=hu.shenyuan()
print d
elif changjing==”huoyanshan”:
d=hu.huoyan()
print d
elif choice==”an”:
changjing=raw_input(changjing)
if changjing==”mojiajiguan”:
d=an.moji()
print d
elif changjing==”changping”:
d=an.changping()
print d
elif changjing==”wangzhe”:
d=an.wangzhe()
print d
elif changjing==”shenyuan”:
d=an.shenyuan()
print d
elif changjing==”huoyanshan”:
d=an.huoyan()
print d