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#practice 1
def multiple(end):
    i=1
    mul=1
    while i<=end :
        mul*=i
        i+=1
    return mul
n1=int(input("please enter a numbers"))
n2=int(input("please enter a numbers"))
n3=int(input("please enter a numbers"))
print('the result is: ',multiple(n1)+multiple(n2)+multiple(n3))


    

    




please enter a numbers3
please enter a numbers3
please enter a numbers3
the result is:  18

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#practice 2
def add(end):
    temp=1
    bla=0
    while temp<=2*end-1 :
        bla+=1/temp
        temp+=2
    return bla
print(4*add(1000),4*add(100000),sep='    ')


    

    




17.742530693340424    26.952870981991452

In [3]:

    

## practice 3
def con (month,day):
    if (month==1 and day>=20) or(month==2 and day<=18)  :
        print(name,", you are 水瓶座!")
    if (month==2 and day>=19) or(month==3 and day<=20)  :
        print(name,", you are 双鱼座!")
    if (month==3 and day>=21) or(month==4 and day<=19)  :
        print(name,", you are 白羊座!")
    if (month==4 and day>=20) or(month==5 and day<=20)  :
        print(name,", you are 金牛座!")
    if (month==5 and day>=21) or(month==6 and day<=21)  :
        print(name,", you are 双子座!")
    if (month==6 and day>=22) or(month==7 and day<=22)  :
        print(name,", you are 巨蟹座!")
    if (month==7 and day>=23) or(month==8 and day<=22)  :
        print(name,", you are 狮子座!")
    if (month==8 and day>=23) or(month==9 and day<=22)  :
        print(name,", you are 处女座!")
    if (month==9 and day>=23) or(month==10 and day<=23)  :
        print(name,", you are 天秤座!")
    if (month==10 and day>=24) or(month==11 and day<=22)  :
        print(name,", you are 天蝎座!")
    if (month==11 and day>=23) or(month==12 and day<=21)  :
        print(name,", you are 射手座!")
    if (month==12 and day>=22) or(month==1 and day<=19)  :
        print(name,", you are 摩羯座!")
    print("有生之年居然碰到信星座的猿……")
    
def convert(word) :
    if word=="have" :
        print("has")
    elif word=="is" or word=="am" or word=="are" :
        print("is")
    elif word.endswith('o') :
        print(word,"es",sep='')
    elif word.endswith('s') or word.endswith('x') or word.endswith('sh') or word.endswith('ch') or word.endswith('e') :
        print(word,'es',sep='')
    elif ((word.endswith('ay') or word.endswith('ey') or word.endswith('iy') or word.endswith('oy') or word.endswith('uy'))!=1) and word.endswith('y') :
        print(word[:-1],'ies',sep='')
    else :
        print(word,"s",sep='')
    
name=input('please enter your name: ')
month=int(input("please enter the month of your birth"))
day=int(input("please enter the day of your birth"))
print(con(month,day))
word=input('please enter the a verb: ')
convert(word)


    

    




please enter your name: xie
please enter the month of your birth9
please enter the day of your birth28
xie , you are 天秤座!
有生之年居然碰到信星座的猿……
None
please enter the a verb: go
goes

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## challenge
def add(begin,end,gap) :
    i=begin
    total=0
    while i<=end :
        total+=i
        i+=gap
    return total
m=int(input('please enter m :'))
n=int(input('please enter n :'))
k=int(input('please enter k :'))
print('the total is : ',add(m,n,k))


    

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