相关试卷

def change(code, key):

    m = ""

    if "A" < = code <= "Z":

        m = chr(()+32)

    elif "0" < = code <= "9":

        code = int(code)

        m = str()

    else:

        m = code

    return m

code = input("请输入要加密的明文:")

key = int(input("请输入密钥:"))

code_new= ""

for i in code:

    code_ new +=

print(code_new)

df= pd.read excel("Scores.xlsx")

df1 = df.groupby("选科"，as_index=False)

df2= df1.学号.#统计各选科组合的人数

df2 = df2.rename coums={"学号" : "人数"})

plt.bar( ) #绘制柱形图

plt.title("选科人数最多的前 8 个组合") #设置图表标题

plt.show( )

#从数据库中读取各订单所在区域，如a=[‘A’,‘B’,‘H’,‘F’, … …]

qyn=8

#区域数量

psryn=30

#配送人员数量

rs=round(len(a)/psryn)

b=[]

for i in range(qyn):

    c=chr(i+65)         # “A”的Ascii码值是65

    b.append([c,0,0])    #生成二维列表b=[[‘A’,0,0],[‘B’,0,0]…

…]

for i in a:

        #统计各区域订单数量

s=0

for i in range(qyn):

    If b[i][1]%rs!=0:

        b[i][2]+=1

    s+=b[i][2]

k=s-psryn

i=0

while k>0:

    for j in range(qyn-1,i,-1):

        :

            b[j-1],b[j]=b[j],b[j-1]

    if b[i][2]>1:

        b[i][2]-=1

        k-=1

    i+=1

import pandas as pd

import matplotlib.pyplot as plt

df=pd.read_excel("梅西俱乐部详细比赛数据.xlsx")

df['年']=pd.to_datetime(df["时间"]).dt.strftime('%Y').astype(int)

df['月']=pd.to_datetime(df["时间"]).dt.strftime('%m').astype(int)

df['胜负情况']=""

for i in range(len(df)):

    f=True;z=0;k=0

    for c in df["比分"][i]:

        if:

            if f:

                z=z*10+int(c)

            else:

                k=k*10+int(c)

        else:

            f=not f

    jlb="巴塞罗那"

    if df["年"][i]*100+df["月"][i]>=202108:

    if (df["主队"][i]==jlb and z>k) or (df["客队"][i]==jlb and z<k):

        df['胜负情况'][i]="胜"

    elif z==k:

        df['胜负情况'][i]="平"

    else:

        df['胜负情况'][i]="负"

g=df.groupby(df["年"],as_index=True).count()

g1=df1.groupby(df1["年"],as_index=True).count()

g["胜率"]=g1["胜负情况"]/g["胜负情况"]*100

plt.plot(, marker='∧')

plt.title("2004-2022 梅西俱乐部比赛胜率统计")

plt.show()

方框处代码为       (多选：填字母)