# 確定數(shù)值的輸入時(shí)

num1,num2 = map(int,input().split())
print("num1:",num1)
print("num2:",num2)

# 不確定數(shù)值的輸入時(shí)

list1 = list(map(int,input().split()))
print("list1:",list1)

list2 = [1,2,3,4,5,6]
for k, v in enumerate(list2):
    if k % 2 == 0:
        print("v**2:",v**2)
    else:
        print("v:",v) 

from sys import getsizeof
num = 1
print(getsizeof(num))

num1 = 20
str1 = "hello world"
print(id(num1))
print(id(str1))

def CheckStr(gen1,gen2):
    return sorted(gen1) == sorted(gen2)

print(CheckStr("python","python"))
print(CheckStr([1,2,3],[3,2,1]))

dict1 = {"name":['Jame','Alice'],"num":["212019","312016"]}
dict2 = {"sex":["M","F"]}

# 方法1

finaldict = {**dict1,**dict2}
print(finaldict)

# 方法2

finaldict = dict1.copy()
finaldict.update(dict2)
print(finaldict)

import os

def CheckFile():
    print("文件夾存在:",os.path.exists("data"))
    if not os.path.exists("data"):
        os.mkdir("data")
CheckFile()

list8 = range(1,8)
list_squares = [i**2 for i in list8]
print(list_squares)

list1 = ['James','Alice','Hoton']
list2 = [88,86,91]

# 方法1 利用zip內(nèi)置函數(shù)
dict1 = dict(zip(list1,list2))

# 方法2 去除dict的隱式轉(zhuǎn)換
dict2 = {key:value for key,value in zip(list1,list2)}

# 方法3 利用for循環(huán)
dict3 = {}
for k, v in zip(list1,list2):
    if k not in dict3.keys():
        dict3[k] = v

print("dict1:",dict1)
print("dict2:",dict2)
print("dict3:",dict3)

list1 = ['James','Alice','Hoton','Cris']
print(sorted(list1,key=lambda x:x.lower()[0]))  # 按照字符串的第一個(gè)字母排序
print(sorted(list1,key=lambda x:x.lower()[-1])) # 按照字符串的最后一個(gè)字母排序

list11 = list(range(1,20))
print("偶數(shù)平方:",[i**2 if i % 2 == 0 else i for i in list11])

list1 = ["1","2","3","4"]
list2 = ["one","two","three","four"]

new_list = [x + y for x,y in zip(list1,list2)]
print("逐元素相加：",new_list)

dict1 = [
    {"name":"James",
     "num":25},
    {"name":"Alice",
     "num":39},
    {"name":"Hoton",
     "num":35}
]

# 方法1 利用字典的sort函數(shù)
dict1.sort(key=lambda item:item["num"])
print(dict1)

# 方法2 利用sorted函數(shù)
dict1 = sorted(dict1,key=lambda item:item["num"])
print(dict1)

from time import sleep
def funcl():
    for i in range(10000000):
        a = i
    sleep(2)

# 方法1
from datetime import datetime
start = datetime.now()
funcl()
print("程序執(zhí)行所用的時(shí)間為：",datetime.now()-start)

# 方法2
import time

start_time = time.time()
funcl()
print("程序執(zhí)行所用的時(shí)間為：",time.time()-start_time)

str_list = ["小圓愛python","hello world","小圓愛python","kaka小圓"]
keywords = 'python'

for strs in str_list:
    if keywords in strs:
        print(strs)

name = "愛坤"
num = 100

# 方法1 字符串相加
print("我的名字是"+name+",我的成績(jī)是"+str(num)+"。")

# 方法2 Python3 中的F-strings
print(f"我的名字是{name},我的成績(jī)是{num}。")

# 方法3 join函數(shù)
print(''.join(["我的名字是",name,"，我的成績(jī)是",str(num),"。"]))

# 方法4 操作字符處理
print("我的名字是%s，我的成績(jī)是%d。" % (name,num))


# 方法5 format(python2.7以上的版本)
print("我的名字是{},我的成績(jī)是{}。".format(name,num))

# 錯(cuò)誤1 扣除為0
try:
    num1 = 10
    num2 = 0
    print(num1 / num2)
except ZeroDivisionError :
    print("除數(shù)不能為0")

print("=================")

# 錯(cuò)誤2 找不到文件
try:
    with open("data.txt",'r') as fr:
        print(fr.readlines())   
except IOError:
    print("該文件不存在")
finally:
    print("程序執(zhí)行結(jié)束")

list1 = [1,2,3,4,5,6,7,8,3,3,4,5,2,3,2]

# 方法1 利用for循環(huán)統(tǒng)計(jì)
frequ_dict = {}
for i in list1:
    if i in frequ_dict.keys():
        frequ_dict[i] += 1
    else:
        frequ_dict[i] = 1
print(frequ_dict)


# 方法2 李彤Counter類
from collections import Counter
Counter = Counter(list1)
print(Counter.most_common())

from operator import add, sub, truediv, mul

operation = {
    "+" : add,
    "-" : sub,
    "/" : truediv,
    "*" : mul,
    "**" : pow
}

print(operation['+'](2,3))
print(operation['*'](2,3))
print(operation['**'](2,3))
print(operation['/'](10,3))

def add(x,y):
    return x + y

def sub(x,y):
    return x - y

x,y = 2,3
print((sub if x > y else add)(x,y))
# 通過(guò)條件判斷執(zhí)行的函數(shù)

x, y = 2, 3
print("交換前：x={}, y={}".format(x, y))
x, y = y, x
print("交換后：x={}, y={}".format(x, y))


x, y = [2, 3], [4,5]
print("交換前: x={}, y={}".format(x, y))
x, y = y, x
print("交換后：x={}, y={}".format(x, y))

list1 = [1,2,3,4,2,4,5]
list2 = [1,2,3,4,5,6,7]
print("list1有重復(fù)元素：",len(list1) != len(set(list1)))
print("list2有重復(fù)元素：",len(list2) != len(set(list2)))