大家好，好久不见，我最近在GitHub上发现了一个好东西，是关于夯实Python基础的100道题，原作者是在python2的时候创建的，闲来无事，非常适合像我一样的小白来练习
对于每一道题，解法都不唯一，我在这里仅仅是抛砖引玉，希望可以集合大家的智慧，如果哪道题有其他解法，希望可以在评论中留下大家宝贵的意见！每次我会更新10道题，一共会更新10篇，这也算是对我之前的文章一个总结啦，如果没有看到我之前有关Python的小白学习分享的同学们，可以戳下面连接查看哈：
- Python 基础起步，写给同为小白的你
- Python 进阶之路
- Python pandas 之旅
如果大家想要和我联系，可以访问我的个人主页:
- 我的个人主页
好啦，闲话少说，让我们开始今天的刷题之旅吧！
Question 1:
Write a program which will find all such numbers which are divisible by 7 but are not a multiple of 5,between 2000 and 3200 (both included).The numbers obtained should be printed in a comma-separated sequence on a single line.
解法一
for i in range(2000,3201):
if i%7 == 0 and i%5!=0:
print(i,end=',')
print("\b")解法二
numbers = [str(x) for x in range(2000,3201) if (x%7==0) and (x%5!=0)]
print (','.join(numbers))Question 2:
*Write a program which can compute the factorial of a given numbers.The results should be printed in a comma-separated sequence on a single line.Suppose the following input is supplied to the program: 8
Then, the output should be:40320*
解法一
def fact(x):
if x == 0:
return 1
return x * fact(x - 1)
x=int(input())
print(fact(x))解法二
import math as ma
x=int(input())
print(ma.factorial(x))解法三
from functools import reduce
from operator import mul
x=int(input())
print(reduce(mul,range(1,x+1)))
Question 3:
With a given integral number n, write a program to generate a dictionary that contains (i, i x i) such that is an integral number between 1 and n (both included). and then the program should print the dictionary.Suppose the following input is supplied to the program: 8Then, the output should be:
{1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64}解法一
n=int(input())
d=dict()
for i in range(1,n+1):
d[i]=i*i
print(d)
解法二
n=int(input())
d={x:x*x for x in range(1,n+1)}
print(d)
Question 4:
Write a program which accepts a sequence of comma-separated numbers from console and generate a list and a tuple which contains every number.Suppose the following input is supplied to the program:
34,67,55,33,12,98
Then, the output should be:
['34', '67', '55', '33', '12', '98']
('34', '67', '55', '33', '12', '98')
解法一
values=input()
l=values.split(",")
t=tuple(l)
print(f"List of values : {l}")
print(f"Tuple of values : {t}")
Question 5:
Define a class which has at least two methods:
- getString: to get a string from console input
- printString: to print the string in upper case.
Also please include simple test function to test the class methods.
解法一
class InputOutString:
def __init__(self):
self.s = ""
def getString(self):
self.s = input()
def printString(self):
print(self.s.upper())
# Test
a = InputOutString()
a.getString()
a.printString()
Question 6:
Write a program that calculates and prints the value according to the given fORMula:Q = Square root of [(2 C D)/H]
Following are the fixed values of C and H:
C is 50. H is 30.
D is the variable whose values should be input to your program in a comma-separated sequence.For example
Let us assume the following comma separated input sequence is given to the program:*
100,150,180The output of the program should be:
18,22,24解法一
import math
c=50
h=30
value = []
items= [x for x in input("Input numbers comma-separated:").split(',')]
for d in items:
value.append(str(int(round(math.sqrt(2*c*float(d)/h)))))
print (','.join(value))
Question 7:
Write a program which takes 2 digits, X,Y as input and generates a 2-dimensional array. The element value in the i-th row and j-th column of the array should be i * j.Note: i=0,1.., X-1; j=0,1,¡Y-1. Suppose the following inputs are given to the program: 3,5
Then, the output of the program should be:
[[0, 0, 0, 0, 0], [0, 1, 2, 3, 4], [0, 2, 4, 6, 8]]解法一
x,y = map(int,input().split(','))
lst = []
for i in range(x):
tmp = []
for j in range(y):
tmp.append(i*j)
lst.append(tmp)
print(lst)
解法二
x,y = map(int,input().split(','))
lst = [[i*j for j in range(y)] for i in range(x)]
print(lst)
Question 8:
Write a program that accepts a comma separated sequence of Words as input and prints the words in a comma-separated sequence after sorting them alphabetically.Suppose the following input is supplied to the program:
without,hello,bag,worldThen, the output should be:
bag,hello,without,world解法一
original_string = input("Input Text:")
l = original_string.split(",")
final_string = sorted(l,key=str)
print(','.join(final_string))
解法二
lst = input().split(',')
lst.sort()
print(",".join(lst))
Question 9:
Write a program that accepts sequence of lines as input and prints the lines after making all characters in the sentence capitalized.Suppose the following input is supplied to the program:
Hello world
Practice makes perfectThen, the output should be:
HELLO WORLD
PRACTICE MAKES PERFECT解法一
lines = []
while True:
s = input()
if s:
lines.append(s.upper())
else:
break;
for sentence in lines:
print(sentence)
Question 10:
Write a program that accepts a sequence of whitespace separated words as input and prints the words after removing all duplicate words and sorting them alphanumerically.Suppose the following input is supplied to the program:
hello world and practice makes perfect and hello world againThen, the output should be:
again and hello makes perfect practice world解法一
word = input().split()
for i in word:
if word.count(i) > 1: #count function returns total repeatation of an element that is send as argument
word.remove(i) # removes exactly one element per call
word.sort()
print(" ".join(word))
解法二
s = input("Input Text:")
words = [word for word in s.split(" ")]
print (" ".join(sorted(list(set(words)))))我把前十道题的代码上传到github上啦，如果大家想看一下每道题的输出结果，可以点击以下链接下载：
- Python 1-10题
我的运行环境Python 3.6+,如果你用的是Python 2.7版本，绝大多数不同就体现在以下3点：
- raw_input()在python3中是input()
- print需要加括号
- fstring 可以换成.format(), 或者%s，%d
谢谢大家，我们下期见！希望各位朋友不要吝啬，把每道题的更高效的解法写在评论里，我们一起进步！！！
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