python类的综合使用1：类中有类,输出类对象及内容
class eachstuinfor:
def __init__(self,name,score):
self.name=name
self.score=score
def __str__(self):#输出变量
return str(self.__dict__)
def __repr__(self):#输出对象
# 复用 __str__ 的逻辑，保证格式统一
return self.__str__()
class allstuinfor:
def __init__(self):
self.allstuinfor = []
def add(self,e):
self.allstuinfor.append(e)
def get_sum(self):
stulscorelist =[e.score for e in self.allstuinfor]
return sum(stulscorelist)
def printall(self):
print("-"*36)
for e in self.allstuinfor:
print(e)
#print(e.__dict__)
def sortbyscore(self,reverse):
self.allstuinfor.sort(key=lambda e:e.score,reverse=reverse)
def __str__(self):
return str(self.allstuinfor)
a1 = allstuinfor()
a1.add(eachstuinfor("lucy",300.0))
a1.add(eachstuinfor("mask",298.0))
a1.add(eachstuinfor("blus",299.0))
a1.add(eachstuinfor("alice",300.0))
#print(a1)
print(a1.get_sum())
a1.printall()
a1.sortbyscore(True)
a1.printall()
输出如下内容：
1197.0
------------------------------------
{'name': 'lucy', 'score': 300.0}
{'name': 'mask', 'score': 298.0}
{'name': 'blus', 'score': 299.0}
{'name': 'alice', 'score': 300.0}
------------------------------------
{'name': 'lucy', 'score': 300.0}
{'name': 'alice', 'score': 300.0}
{'name': 'blus', 'score': 299.0}
{'name': 'mask', 'score': 298.0}