Python作业题
1.定义一个字符串"python的创始人是Guido",试分别打印出"Guido","odiuG", "ph的人uo"
s = 'python的创始人是Guido' a = s[11:16:] b = s[-1:-6:-1] c = s[::3] print(a,b,c)
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"
s = '你' s1 = '最帅' print(s+s1*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
#回文 import random for i in range(10): n = random.randint(1,1000) #print(n) s = str(n) s_re = s[::-1] if s == s_re: print('{}是回文'.format(n)) else: print('{}不是回文数'.format(n))
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,可以怎么买?
for man in range(21): for woman in range(34): for kid in range(100): if (5*man+3*woman+kid/3)==100 and (man+woman+kid)==100: print(man,woman,kid)
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
a=input("请输入:") #print(a) n = 0 s = 0 o = 0 for i in a: #print(i) if "a"<= i<="z" or "A"<= i<="Z": s+=1 elif '0'<=i<='9': n+=1 else: o+=1 print('字母有{}个,数字有{}个,其他有{}个'.format(s,n,o))
6.1990.1.1是星期一,其后任意年月,计算1号星期几