浙大版《Python程序设计》题目集(函数篇)

第6章函数-1 使用函数求特殊a串数列和

def fn(a,n):
    sum = 0
    for i in range(n):
        sum = sum + a * pow(10,i) * (n - i)
    return sum
a,n = input().split(" ")
s = fn(int(a),int(n))
print(s)

第6章函数-2 使用函数求素数和

def prime(p):
    global flag
    if p != 1:
        if p == 2:
            flag = True
        else:
            for i in range(2,p):
                if p % i == 0:
                    flag = False
                    break
                else:
                    flag = True
                    continue
    else:
        flag = False
    return flag
def primeSum(m,n):
    sum = 0
    for i in range(m,n + 1):
        flag = prime(i)
        if flag:
            sum = sum + i
            continue
        else:
            continue
    return sum
m,n = map(int,input().split(" "))
print(primeSum(m, n))

第6章函数-3 使用函数统计指定数字的个数

def CountDigit(number,digit):
    number = str(number)
    count = 0
    for num in number:
        if num.isdigit():
            if int(num) == digit:
                count = count + 1
        else:
            continue
    return count
number,digit = input().split(" ")
number = int(number)
digit = int(digit)
count = CountDigit(number, digit)
print("Number of digit",digit,"in",str(number)+":",count)

第6章函数-4 使用函数输出指定范围内Fibonacci数的个数

def fib(n):
    count = 2
    f0 = f1 = 1
    res = 1
    while count <= n:
        res = f0 + f1
        f0 = f1
        f1 = res
        count = count + 1
    return res
def PrintFN(m,n):
    ls = []
    fibs = []
    for j in range(1,n + 1):
        fibs.append(fib(j))
    for i in range(m,n + 1):
        if i in fibs:
            ls.append(i) 
    return ls
m,n,i = input().split()
n = int(n)
m = int(m)
i = int(i)
b = fib(i)
print("fib({0}) = {1}".format(i,b))
fiblist = PrintFN(m,n)
print(len(fiblist))

第6章函数-5 使用函数求余弦函数的近似值

#自定义阶乘求解函数
def factorial(n):
    res = 1
    for i in range(1,n + 1):
        res = res * i
    return res
#自定义余弦函数近似值求解函数
def funcos(eps,x):
    value,sgn,index= 0,1,0
    error = sgn * (x ** index) / factorial(index)
    while abs(error) > eps or abs(error) == eps:
        value = value + error
        sgn = - sgn
        index = index + 2
        error = sgn * (x ** index) / factorial(index)
    return value
eps = float(input())
x = float(input())
value = funcos(eps,x)
print("cos({0}) = {1:.4f}".format(x,value))

第6章函数-6 缩写词

def acronym(phrase):
    ls = phrase.split(" ")
    abbr = ''
    for word in ls:
        if len(word) > 0:
            abbr = abbr + word[0].upper()
        else:
            continue
    return abbr
phrase = input()
print(acronym(phrase))