python之路1 函数 内置函数之三

# l = [
#     (5,'e'),
#     (1,'b'),
#     (2,'a'),
#     (3,'c')
# ]
# print(list((max(l))))
# #ll = ['a10','b12','c10',1]#不同数据类型不能进行比较
# ll = ['a10','b12','c10']
# print(list((max(ll))))

# age_dic={'age1':13,'age2':12,'age3':14,'age':100
#
# }
# print(max(age_dic.values()))
# print(max(age_dic))#默认按keys取值
# for i in zip(age_dic.values(),age_dic.keys()):
#     print(i)
# #print(max(zip(age_dic.values(),age_dic.keys())))#取一个值
# print(list(max(zip(age_dic.values(),age_dic.keys()))))#结合zip使用


# people = [
#     {'name':'alex','age':1000},
#     {'name':'wuliu','age':12}
# ]
#
# print(max(people,key=lambda dic:dic['age']))
# # res = []
# for i in people:
#     res.append(i['age'])
# print(res)
# print(max(res))
#他会显示字符在阿斯克码的位置
#print(ord('a'))
#几的几次方，如10的3次方
# print(pow(10,3))
# # print(pow(3,3,2))#取余如9除2

# l=[1,2,3,4]
# #reversed()也是一个可迭代对象，取值加for或list
# #把元素反转
# print(list(reversed(l)))
# #四舍五入
# print(round(3.5))
# #
# print(set('hello'))
# l = 'hello'
# print(l[3:5])
# sl = slice(3,5)
# print(l[sl])


# people = [
#     {'name':'alex','age':1000},
#     {'name':'wuliu','age':12}
# ]
# print(sorted(people,key=lambda dic:dic['age']))
# #排序本质就是在比较大小，不同类型不能比较
# l = [3,3,11,44,1,444,2]
# print(sorted(l))


# name_dic={
#     'adyuan':11900,
#     'alex':1200,
#     'wupei':300
# }
# print(sorted(name_dic))
# print(sorted(name_dic,key=lambda key:name_dic[key]))
# print(sorted(zip(name_dic.values(),name_dic.keys())))
#str转换数据类型
#type查看数据类型
# print(str('1'))
# #print(str({'a':3}))
# print(type(str({'a':3})))
#sum()求和
#l=[1,2,34,4,4]
# print(sum(l))
# print(sum(range(5)))
# msg= '2113'
# if type(msg)is str:
#     msg =int(msg)
#     res=msg+1
#     print(res)

# def test():
#     msg="fbsj"
#     print(locals())
#     print(vars())
# test()
# print(vars(int))

#模块就是py文件
#import 不导入字符串

import  test
#py文件名加点直接调用里面的函数
test.test()
module_name='test'

m=__import__(module_name)
m.test()