Python期末

for i in range(10):

    if i%2==0:

        continue

    else:

        print(i, end=",")

class account:

    def __init__(self, id, balance):

        self.id = id; self.balance = balance  

    def deposit(self, amount): self.balance += amount

    def withdraw(self, amount): self.balance -= amount

acc1 = account('1234', 100); acc1.deposit(500)

acc1.withdraw(200); print(acc1.balance)

执行以下程序，输入”93python22”，

w = input('请输入数字和字母构成的字符串：')

for x in w:

    if '0'<= x <= '9':

        continue

    else:

        w.replace(x,'')

print(w)

输出结果为：

words = "Python"

d1 = {'a':[1,2], 'b':2}; 

d2= d1.copy(); 

d1['a'][0]=6

sum = d1['a'][0] + d2['a'][0]; 

print(sum)

counter = 1;num=0

def TestVariable():

    global counter

    for i in (1, 2, 3): counter += 1

    num=10

TestVariable(); print(counter,num)

words = "Python"

print("{:#^9}".format(words))

def demo(a, b, c=3, d=100):

        return sum((a,b,c,d))

print(demo(1, 2, 3, 4))

print(demo(1, 2, d=3))

import math

x = input('输入两边长及夹角（度）：')

a, b, alpha = map(float, x.split())

c = math.sqrt(a**2 + b**2 - 2*a*b*math.cos(alpha*math.pi/180))

print(c)

执行下列语句：当输入的是2 3 4 5 0（每行一个数），输出结果为:

number = 0

sum=0      

for count in range(5):

     number=eval(input("Enter an integer:"))

    sum+=number

print("sum is",sum)

print("count is",count)

下列Python语句的输出结果是：

def  recurse(n, s):

    if n == 0:

        print(s)

    else:

        recurse(n-1, n+s)

recurse(3, 0)