装饰器作业

一、记录日志装饰器练习题

import time
import os
import sys
def log(fun):
    def wrapper(*args,**kwargs):
        result = fun(*args,**kwargs)
        now_time = time.ctime()
        #name = platform.uname.nodename.split('.')[0]
        process_full_name = sys.argv[0]
        process_name = os.path.split(process_full_name)[-1]
        info = "函数[%s]的运行结果为%s" % (fun.__name__, result)
        log = " ".join([now_time,process_name, info])
        print(log)
        with open('file.log', 'w') as f:
            f.writelines(log)
        return result
    return wrapper
@log
def roll(name, age, **kwargs):
    print(name, age, kwargs)
roll(name='陈辉', age=10, province='陕西', gender='男')

二、斐波那契数列装饰器练习：实现高速缓存递归

import time
import os
import json
def num_cache(fun):
    list_info = {}

    cache_filename = 'cache.txt'
    if os.path.exists(cache_filename):
        with open(cache_filename) as f:
            try:
                list_info = json.load(f)
            except:
                list_info = {}

    def wrapper1(num):
        if num in list_info:
            result = list_info.get(num)
            return result
        else:
            result = fun(num)
            list_info[num] = result
            return result

    return wrapper1
def timeit(fun):
    def wrapper2(*args):
        start_time = time.time()
        result = fun(*args)
        end_time = time.time()
        print('所用时间为%s' % (end_time - start_time))
        return result
    return wrapper2
@num_cache
def fib(n):
    if n < 3:
        return 1
    else:
        return fib(n-1) + fib(n-2)
@timeit
def fun1():
    result = fib(200)
    print('fib(200)=%s'%(result))
@timeit
def fun2():
    result = fib(201)
    print('fib(201)=%s'%(result))
fun1()
fun2()

三、Leetcode字符串练习题

def fun(v1,v2):
    l_1 = v1.split('.')
    l_2 = v2.split('.')
    c = 0
    while True:
        if c == len(l_1) and c == len(l_2):
            return 0
        if len(l_1) == c:
            l_1.append(0)
        if len(l_2) == c:
            l_2.append(0)
        if int(l_1[c]) > int(l_2[c]):
            return 1
        elif int(l_1[c]) < int(l_2[c]):
            return -1
        c += 1
f = fun('0.1','1.1')
print(f)

四、微信好友数据分析与展示

import itchat
itchat.auto_login(False)
itchat.login()
my_friends = itchat.get_friends(update=True)[0:]
def province(Province):
    area = {}
    try:
        for friend in my_friends[1:]:
            area = friend[Province]
            if area == '':
                pass
            elif area not in area.keys():
                area[area] = 1
            else:
                area[area] += 1
        return area
    except:
        print('请输入正确参数:')
    print(area)
province(Province='陕西')
from pyecharts import Line
# 绘制柱状图
from pyecharts import Bar

# 创建条形图对象
bar = Bar("好友省份分布")
# 添加条形图绘制的信息
bar.add("", list(sortedFriend.keys()), list(sortedFriend.values()))
# 将绘制的图形保存未html文件, 默认存储于当前目录所再文件render.html
bar.render('doc/province.html')