1.输出 "Hello, World!"：
print("Hello, World!")
2.求两个数的和：
3.计算圆的面积：
import math
4.判断一个数是否为偶数：
num = 8if num % 2 == 0:print("This number is even.")else:print("This number is odd.")5.计算一个列表的平均值：
lst = [1, 2, 3, 4, 5]avg = sum(lst) / len(lst)print(avg)6.打印九九乘法表：
for i in range(1, 10):for j in range(1, i+1):print(f"{j}x{i}={i*j}", end='\t')print()7.判断一个字符串是否为回文字符串：
s = "racecar"if s == s[::-1]:print("This is a palindrome.")else:print("This is not a palindrome.")8.输出斐波那契数列的前20项：
a, b = 0, 1for i in range(20):print(a, end=' ')a, b = b, a+b9.生成一个包含10个随机数的列表：
import random
num = 17if num > 1:for i in range(2, int(num/2)+1):if (num % i) == 0:print(num, "is not a prime number")breakelse:print(num, "is a prime number")else:print(num, "is not a prime number")14.求一个列表中的最大值和最小值：
lst = [5, 3, 8, 2, 7, 4, 1, 9, 6]max_val = max(lst)min_val = min(lst)print("Max value:", max_val)print("Min value:", min_val)15.将一个字符串翻转：
string = "Hello, World!"reversed_string = string[::-1]print(reversed_string)16.判断一个数是否为完全平方数：
num = 16if (num**0.5).is_integer():print(num, "is a perfect square.")else:print(num, "is not a perfect square.")17.计算一个字符串中包含的字母个数：
num = 5factorial = 1for i in range(1, num+1):factorial *= iprint(factorial)19.将一个列表中的元素去重：
lst = [1, 2, 3, 2, 4, 5, 4, 6, 7, 6]unique_lst = list(set(lst))print(unique_lst)20.将一个列表中的元素随机排序：
import random
a = 15b = 25
while b != 0:t = bb = a % ba = t
print("The greatest common divisor is:", a)24.计算两个数的最小公倍数：
a = 15b = 25gcd = 0
for i in range(1, b+1):if (a * i) % b == 0:gcd = a * ibreak
print("The least common multiple is:", gcd)25.将一个字符串中的空格替换为下划线：
num = 12321if str(num) == str(num)[::-1]:print(num, "is a palindrome.")else:print(num, "is not a palindrome.")27.判断一个字符串是否为全数字：
import math
my_list = ["apple", "banana", "cherry", "date", "elderberry"]sorted_list = sorted(my_list, key=len)print(sorted_list)
30.将一个列表中的元素按照长度从大到小排序：
num = 5cube = num ** 3print(cube)33.计算一个数的四次方：
num = 5fourth_power = num ** 4print(fourth_power)34.将一个列表中的元素用逗号连接成一个字符串：
lst = ["apple", "banana", "pear", "orange", "kiwi"]s = ', '.join(lst)print(s)35.将一个列表中的元素用空格连接成一个字符串：
lst = ["apple", "banana", "pear", "orange", "kiwi"]s = ' '.join(lst)print(s)36.将一个列表中的元素用换行符连接成一个字符串：
lst = ["apple", "banana", "pear", "orange", "kiwi"]s = '\n'.join(lst)print(s)37.判断一个数是否为质数：
num = 17is_prime = True
if num > 1:for i in range(2, int(num**0.5)+1):if num % i == 0:is_prime = Falsebreakelse:is_prime = False
if is_prime:print(num, "is a prime number.")else:print(num, "is not a prime number.")38.将一个字符串中的字母大小写互换：
s = "racecar"if s == s[::-1]:print(s, "is a palindrome.")else:print(s, "is not a palindrome.")40.计算两个数的和、差、积和商：
a = 5b = 3
sum = a + bdifference = a - bproduct = a * bquotient = a / b
print("The sum is:", sum)print("The difference is:", difference)print("The product is:", product)print("The quotient is:", quotient)41.判断一个字符串中是否包含另一个字符串：
s = "Hello, World!"sub_s = "World"
if sub_s in s:print(s, "contains", sub_s)else:print(s, "does not contain", sub_s)42.将一个字符串中的数字取出来并求和：
import math
lst = [1, 2, 3, 2, 4, 3, 5, 6, 1]unique_lst = list(set(lst))print(unique_lst)46.将一个字符串中的每个单词逆序输出：
lst = [1, 2, 3, 4, 5, 6]pairs = [(lst[i], lst[i+1]) for i in range(0, len(lst)-1, 2)]print(pairs)50.将一个列表中的元素分组：
lst = [1, 2, 3, 4, 5, 6]groups = [[lst[i], lst[i+1]] for i in range(0, len(lst), 2)]print(groups)51.将一个字符串中的每个单词的首字母大写，并将其余字母小写：
import random
def shift_letter(letter, shift):shifted_letter = chr((ord(letter) - 97 + shift) % 26 + 97)return shifted_letter
s = "hello"shift = 3shifted_s = ''.join([shift_letter(letter, shift) for letter in s])print(shifted_s)54.将一个字符串中的字母往前移动指定的位数：
def shift_letter(letter, shift):shifted_letter = chr((ord(letter) - 97 - shift) % 26 + 97)return shifted_letter
s = "khoor"shift = 3shifted_s = ''.join([shift_letter(letter, shift) for letter in s])print(shifted_s)55.求一个列表中的最大数和最小数：
lst = [1, 2, 3, 4, 5, 6]max_num = max(lst)min_num = min(lst)print("Max:", max_num)print("Min:", min_num)56.求一个列表中的元素之和：
lst = [1, 2, 3, 4, 5, 6]sum_lst = sum(lst)print("Sum:", sum_lst)57.求一个列表中的元素平均值：
lst = [1, 2, 3, 4, 5, 6]avg_lst = sum(lst) / len(lst)print("Average:", avg_lst)58.求一个列表中的中位数：
def median(lst):sorted_lst = sorted(lst)lst_len = len(lst)mid_index = lst_len // 2if lst_len % 2 == 0:return (sorted_lst[mid_index-1] + sorted_lst[mid_index]) / 2else:return sorted_lst[mid_index]
lst = [1, 2, 3, 4, 5, 6]median_lst = median(lst)print("Median:", median_lst)59.求一个列表中的众数：
from collections import Counter
def gcd(a, b):if a % b == 0:return belse:return gcd(b, a % b)
a = 48b = 36gcd_ab = gcd(a, b)print("GCD:", gcd_ab)61.求两个数的最小公倍数：
def lcm(a, b):return (a * b) // gcd(a, b)
a = 48b = 36lcm_ab = lcm(a, b)print("LCM:", lcm_ab)62.将一个字符串中的每个单词首尾颠倒：
s = "A man, a plan, a canal: Panama"print(is_palindrome(s))68.将一个列表中的元素随机排序：
import random
def is_increasing(lst):return all(x < y for x, y in zip(lst, lst[1:]))
lst = [1, 2, 3, 4, 5, 6]print(is_increasing(lst))70.判断一个列表是否为递减列表：
def is_decreasing(lst):return all(x > y for x, y in zip(lst, lst[1:]))
lst = [6, 5, 4, 3, 2, 1]print(is_decreasing(lst))71.将一个列表中的元素去重：
lst = [1, 2, 3, 2, 4, 3, 5, 6, 1]unique_lst = list(set(lst))print(unique_lst)72.将一个列表中的元素按照出现次数从高到低排序：
from collections import Counter
lst = [1, 2, 3, 2, 4, 3, 5, 6, 1]cnt = Counter(lst)sorted_lst = sorted(lst, key=lambda x: cnt[x], reverse=True)print(sorted_lst)73.将一个字符串中的每个单词按照出现次数从高到低排序：
from collections import Counter
import math
x = 8cbrt_x = x**(1/3)print(cbrt_x)76.将一个二进制数转换为十进制数：
binary_num = "1011"decimal_num = int(binary_num, 2)print(decimal_num)77.将一个八进制数转换为十进制数：
octal_num = "17"decimal_num =78.将一个十六进制数转换为十进制数：
hex_num = "1F"decimal_num = int(hex_num, 16)print(decimal_num)79.将一个整数转换为二进制数：
x = 11binary_x = bin(x)[2:]print(binary_x)80.将一个整数转换为八进制数：
x = 31hex_x = hex(x)[2:]print(hex_x)81.将一个整数转换为十六进制数：
x = 31hex_x = hex(x)[2:]print(hex_x)82.生成一个随机整数：
import random
import random
import random
85.从一个列表中随机选择一个元素：
import random
import random
lst = [1, 2, 3, 4, 5, 6]sum_lst = sum(lst)print(sum_lst)88.计算一个列表中的所有元素的平均值：
lst = [1, 2, 3, 4, 5, 6]avg_lst = sum(lst) / len(lst)print(avg_lst)89.计算一个列表中的所有元素的中位数：
import statistics
from collections import Counter
import statistics
import statistics
lst = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]sorted_lst = sorted(lst)print(sorted_lst)94.对一个列表进行倒序排序：
lst = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]reverse_sorted_lst = sorted(lst, reverse=True)print(reverse_sorted_lst)95.将两个列表合并：
lst1 = [1, 2, 3]lst2 = [4, 5, 6]merged_lst = lst1 + lst2print(merged_lst)96.将两个列表进行zip操作：
lst1 = [1, 2, 3]lst2 = [4, 5, 6]zipped_lst = list(zip(lst1, lst2))print(zipped_lst)97.将一个列表中的元素去重：
lst = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]