1、给定字符串“python的创始人是Guido”,要求输出 Gudio oiduG ph的人uo
s = "python的创始人是Guido"
l = len(s)
print(s[11:l])
print(s[l:10:-1])
print(s[::3])
2、有字符串"你"和"最帅",如何得到字符串"你最帅",又如何得到字符串"你最帅最帅最帅"
s1 = "你"
s2 = "最帅"
print(s1+s2)
print(s1+s2*3)
3、像121 11 111等对称的整型数称为回文整型数,随机产生1000以内的10个整型数,打印其中的回文整型数
import random
i = 0
while i < 10:
a = random.randint(0,1000)
print(a)
if a % 10 == a // 100:
print("{}是回文数".format(a))
elif (a % 10 == a //10) and (a % 10 != 0):
print("{}是回文数".format(a))
i += 1
4、公鸡5文钱1只,母鸡3文钱1只,小鸡3只1文钱,用100文钱买100只鸡,可以怎么
for x in range(20):
for y in range(33):
z = 100 - x - y
if (z % 3 == 0) and (5 * x + 3 * y + z / 3 == 100):
print("公鸡{}只,母鸡{}只,小鸡{}只".format(x,y,z))
5、使用input()读入一个字符串,统计字符串中字母的个数,和数字的个数
s = input("请输入一个字符串:")
n = 0
m = 0
for i in s:
if i >= "a" and i <= "z":
n +=1
elif i >= "A" and i <= "Z":
n +=1
elif i >= "0" and i <= "9":
m += 1
print("字符个数为{}个,数字的个数为{}个".format(n,m))