python123

a = pow((3^4+5*6^7)/8,0.5)
print("%.3f"%a)

print("二进制{0:b}、十进制{0}、八进制{0:o}、十六进制{0:x}".format(0x4DC0+50))

ls = ["综合", "理工", "综合", "综合", "综合", "综合", "综合", "综合", \
      "综合", "综合", "师范", "理工", "综合", "理工", "综合", "综合", \
      "综合", "综合", "综合", "理工", "理工", "理工", "理工", "师范", \
      "综合", "农林", "理工", "综合", "理工", "理工", "理工", "综合", \
      "理工", "综合", "综合", "理工", "农林", "民族", "军事"]
d = {}
for word in ls:
    d[word] = d.get(word, 0) + 1 
for k in d:
    print("{}:{}".format(k, d[k]))

fi = open("论语-网络版.txt", "r", encoding="utf-8")
fo = open("论语-提取版2.txt", "w", encoding="utf-8")
wflag = False            #写标记
for line in fi:
    if "【" in line:     #遇到【时，说明已经到了新的区域，写标记置否
        wflag = False
    if "【原文】" in line:  #遇到【原文】时，设置写标记为True
        wflag = True
        continue
    if wflag == True: #根据写标记将当前行内容写入新的文件
        line = line.lstrip() #去除每行左边的空格
        for i in range(0,25):
            for j in range(0,25):
                line = line.replace("{}·{}".format(i,j),"")
        for i in range(0,100):
            line = line.replace("{}".format(i),"")
        for i in range(0,100):
            line = line.replace("()","")
        # line = line.replace("*","")
        if line == "\n":
            line = line.strip("\n")
        fo.write(line)

s = input("请输入:")# "请输入一个字符串:"
print("{:=^15}".format(s[0:15]))

import time
timestr = "2020-10-10 10:10:10"
t = time.strptime(timestr, "%Y-%m-%d %H:%M:%S")
print(time.strftime("%Y年%m月%d日%H时%M分%S秒", t))

import time
times = "2020-10-10 10:10:10"
t = time.strptime(times, "%Y-%m-%d %H:%M:%S")
t2 = time.strftime("%Y{0}%m{1}%d{2}%H{3}%M{4}%S{5}", t)
print(t2.format("年","月","日","时","分","秒"))
#或者

print((time.strftime("%Y{0}%m{1}%d{2}%H{3}%M{4}%S{5}", t)).format("年","月","日","时","分","秒"))

str = 'TGS2402:甲醛:1.36\nTGS2500:氮气:5.20\nTGS2310:甲烷:1.70\nTGS2820:乙烯:2.43'
ls = str.split("\n")
sum = 0
fieds = []

for gas in ls:
    fi = gas.split(":")
    sum += eval(fi[2])
    fieds.append(fi)

    fieds.sort(key=lambda x: x[2], reverse=True)

for gas in fieds:
    print('{}的浓度是:{}，占比:{:3.0f}%'.format(gas[1], gas[2], 100 * eval(gas[2]) / sum))
#｛:3.0f｝ 表示，跟前面的字符保持三个空格，保留0位小数

def BubbleSort(numbers):
    for i in range(len(numbers)-1):
        for j in range(len(numbers)-1):
            if eval(numbers[j]) > eval(numbers[j+1]):
                numbers[j], numbers[j+1] = numbers[j+1],numbers[j]

    return numbers

numbers = input()
numls = numbers.split(",")
sortednum = BubbleSort(numls)
print(','.join(sortednum))

#自己瞎写的啊哈哈
import jieba
#提取每一年的主题词的个数按照年度顺序显示在屏幕上
with open("topic1.txt", "r", encoding = "utf-8") as f:

    for line in f:
        l1 = line.strip().split(",")[1]
        l2 = jieba.lcut(l1)
        print("{}:{}".format(line.strip().split(",")[0], len(l2)))
#合计四年来的不同主题词的个数统计，以及每个主题词出现的次数按照主题词次数从大到小的顺序显示在屏幕上
with open("topic1.txt", "r", encoding = "utf-8") as f:
    dic = {}
    l3 = ""
    for line in f:
        l2 = line.strip().split(",")[1]
        l3 = l3 + l2
    l4 = jieba.lcut(l3.strip())
    for word in l4:
        dic[word] = dic.get(word, 0) + 1
    lis1 = []
    for k,v in dic.items():
        lis1.append([k,v])
    lis1.sort(key = lambda x:x[1],reverse= True)
    for i in lis1:
        print("{}:{}".format(i[0],i[1]))

#第三问
import jieba
with open("topic1.txt", "r", encoding = "utf-8") as f:
    read = []
    read_f1 = f.readline()
    read_f2 = f.readline()
    read_f3 = f.readline()
    read_f4 = f.readline()
    read.append((read_f1,read_f2,read_f3,read_f4))
print(read)
def func(x,y):
    r1 = x.strip().split(',')
    r2 = y.strip().split(',')
    r1_j = jieba.lcut(r1[1])
    r2_j = jieba.lcut(r2[1])
    r1_duo = []
    r2_duo = []
    for word1 in r1_j:
        if word1 in r2_j:
            continue
        else: r1_duo.append(word1)
    for word2 in r2_j:
        if word2 in r1_j:
            continue
        else: r2_duo.append(word2)
    r1_str = ','.join(r1_duo)
    r2_str = ','.join(r2_duo)
    return print("{}比{}多了主题词:{},少了主题词:{}".format(r2[0], r1[0],r2_str,r1_str))
for i in range(0,3):

    a = func(read[0][i],read[0][i+1])

#第一问
names = ["命运", "寻梦"]
for name in names:
    fi = open(name+"-网络版.txt", "r", encoding="utf-8")
    fo = open(name+"-字符统计.txt", "w", encoding="utf-8")
    txt = fi.read()
    d = {}
    for c in txt:
        d[c] = d.get(c, 0) + 1
    del d['\n']
    ls = list(d.items())
    ls.sort(key=lambda x:x[1], reverse=True)
    for i in range(100):
        ls[i] = "{}:{}".format(ls[i][0], ls[i][1])
    fo.write(",".join(ls[:100]))
    fi.close()
    fo.close()

#第二问
def getList(name):
    f = open(name+"-字符统计.txt", "r", encoding="utf-8")
    words = f.read().split(',')
    for i in range(len(words)):
        words[i] = words[i].split(':')[0]
    f.close()
    return words
def main():
    fo = open("相同字符.txt", "w")
    ls1 = getList("命运")
    ls2 = getList("寻梦")
    ls3 = []
    for c in ls1:
        if c in ls2:
            ls3.append(c)
    fo.write(",".join(ls3))
    fo.close()
main()

#第一问
names = ["命运","寻梦"]
for name in names:
    with open(name + "-网络版.txt", "r", encoding = 'utf-8')as f1:
        f1_read = f1.read()
        l1 = f1_read.strip()
        d = {}
        for word in l1:
            d[word] = d.get(word, 0) + 1
        del d['\n']
        list1 = []
        for k,v in d.items():
            list1.append([k,v])
        list1.sort(key = lambda x:x[1],reverse= True)

        for i in range(100):
            list1[i] = "{}:{}".format(list1[i][0],list1[i][1])

    with open(name + "-字符统计.txt", 'w', encoding = 'utf-8') as fo:
        fo.write(','.join(list1[:100]))

#第二问
f1 = open("命运-网络版.txt", "r", encoding = "utf-8")
txt1 = f1.read()
f2 = open("寻梦-网络版.txt", "r", encoding = "utf-8")
txt2 = f2.read()
l1 = []
l2 = []
l3 = []
for word1 in txt1:
    l1.append(word1)
for word2 in txt2:
    l2.append(word2)
l1_s = set(l1)
l2_s = set(l2)
l3_s = l1_s & l2_s  #集合的交集性质
for a in txt1:
    if a in txt2:
        l1.append(a)

with open("相同字符.txt", "w", encoding = "utf-8") as f3:
    f3.write(','.join(list(l3_s)))

f1.close()
f2.close()

def GreatCommonDivisor(a,b):
    if a < b:
        a, b = b, a
    r = 1
    while r != 0:
        r = a % b
        a = b
        b = r
    return a
n = eval(input(">>>"))
m = eval(input(">>>"))
print(GreatCommonDivisor(m,n))

import turtle as t
for i in range(4):
    t.seth(90 * (i + 1))
    #90,180,270，360
    t.circle(200,90)
    #-90,0,90,180
    t.seth(-90 + i * 90)
    t.circle(200,90)

#得到素数的函数
def is_prime(n):
    for j in range(2, n):
        if n % j == 0:
            return True
ls = [23,45,78,87,11,67,89,13,243,56,67,311,431,111,141]
for i in ls.copy():
    if is_prime(i)== True:
        ls.remove(i)  #此处为一行代码
print(len(ls))
print(ls)

def is_prime(n):
    for i in range(2,n):
        if n % i == 0:
            return False
    return True

ls = [23,45,78,87,11,67,89,13,243,56,67,311,431,111,141]
for i in ls.copy():
    if is_prime(i) == True:
        ls.remove(i)
print(len(ls))

#自己的思路
with open("SunSign.csv", "r", encoding = "utf-8") as f:
    f1 = f.readlines()

    dic = {}
    for line in f1:

        lis = line.split(',')

        dic.update({lis[0]:(lis[1],lis[2],lis[3])})

while True:
    res = input("请输入要查询的星座:").strip()
    if res == 'exit':
        break
    tup = dic.get(res)
    if tup == None:
        print("输入星座名称有误！")
    else:
        print("{}座的生日位于{}-{}之间。".format(chr(eval(tup[2])),tup[0],tup[1]))

fo = open("SunSign.csv","r", encoding='utf-8')
ls = []
for line in fo:
    line = line.replace("\n","")
    ls.append(line.split(","))
fo.close()

while True:
    InputStr = input(">>>") # 请输入星座名称,例如双子座
    InputStr.strip()
    flag = False
    if InputStr == 'exit':
        break
    for line in ls:
        if InputStr == line[0]:
             print("{}座的生日位于{}-{}之间。".format(chr(eval(line[3])),line[1],line[2]))
             flag = True
    if flag == False:
        print("输入星座名称有误！")

s = "What\'s a package, project, or release?We use a number of terms to describe software available on PyPI, like project, release, file, and package. Sometimes those terms are confusing because they\'re used to describe different things in other contexts. Here's how we use them on PyPI:A project on PyPI is the name of a collection of releases and files, and information about them. Projects on PyPI are made and shared by other members of the Python community so that you can use them.A release on PyPI is a specific version of a project. For example, the requests project has many releases, like requests 2.10 and requests 1.2.1. A release consists of one or more files.A file, also known as a package, on PyPI is something that you can download and install. Because of different hardware, operating systems, and file formats, a release may have several files (packages), like an archive containing source code or a binary wheel."

s = s.lower()

for ch in '\',?.:()':

    s = s.replace(ch," ")

words = s.split()

counts = {}

for word in words:

    counts[word] = counts.get(word,0)+1

items = list(counts.items())  #这里学习一下

items.sort(key=lambda x:x[1],reverse = True)

fo = open("wordnum.txt","w",encoding ="utf-8")

for i in range(10):

    word,count = items[i]  #这里学习一下

    fo.writelines( word + ":" + str(count) + "\n")

fo.close()