1 s = 'python的创始人是Guido' 2 print(s[11:]) 3 print(s[15:11:-1]) 4 print(s[::3])
1 s1 = '你' 2 s2 = '最帅' 3 print(s1+s2) 4 print(s1+s2*3)
1 import random 2 for i in range(10): 3 a = random.randint(0,1000) 4 x = a%10 5 y = a//10 6 z = a //100 7 if x==y: 8 print(a) 9 if x==z: 10 print(a)
1 s = input('请输入一个字符串:') 2 s1 = 0 3 s2 = 0 4 for i in s: 5 if 'A'<=i<='z': 6 s1+=1 7 elif '0' <=i<='9': 8 s2+=1 9 print('字母的个数为{},数字的个数为{}'.format(s1,s2))
1 for x in range(1,20): 2 for y in range(1,33): 3 z = 100-x-y 4 if (z%3==0)and(5*x+3*y+z/3==100): 5 print('公鸡{},母鸡{},小鸡{}'.format(x,y,z))
1 year,month = eval(input('请输入一个年份:')) 2 day= 1 3 for i in range(year+1): 4 if i >1990: 5 if i % 4 ==0 and i %100 !=0 or i%400 ==0: 6 day +=366 7 else: 8 day +=365 9 else: 10 continue 11 for n in range(month): 12 if n in [1,3,5,7,8,10,12]: 13 day += 31 14 elif n in [4,6,9,11]: 15 day += 30 16 elif n == 2: 17 if year % 4 == 0 and year % 100 != 0 or year % 400 == 0 : 18 day += 29 19 else: 20 day += 28 21 f = day % 7 22 print(f)