1. show you the code

      1. ans = input("最近学习了吗？yes/no: ")
      2. while ans == 'yes':
      3.  print("very good\n1.Python\n2.高数\n3.退出")
      4.  selection = input("请输入学习选项: ")
      5.  if selection == '1':
      6.      print("Python真不戳！")
      7.  elif selection == '2':
      8.      print("高数真难啊...")
      9.  elif selection == '3':
      10.      print("已退出")
      11.      break
      12.  else:
      13.      print("选项有误，请重新输入")

    2. show you the code

    2.1 while输出1-10

    1. i = 1
    2. while i <= 10:
    3.     print(i, end=' ')
    4.     i += 1

    2.2 水仙花数

    1. def flower_calculate(n):
    2.     zxc = []
    3.     while n != 0:
    4.         zxc.append(n%10)
    5.         n //= 10
    6.     return sum(map(lambda x: x**3, zxc))
    8. i = 100
    9. while i < 1000:
    10.     if i == flower_calculate(i):
    11.         print(i)
    12.     i += 1

    2.3 分别打印1-100的奇数和偶数

    1. zxc = [i for i in range(1, 101)]
    2. print("偶数：", zxc[1::2])
    3. print("奇数：", zxc[::2])

    2.4 求和

    1. print(sum([i if i&1 else -i for i in range(1, 100)]))

    2.5 判断闰年

    1. year = int(input("请输入年份："))
    2. if year % 4 == 0:
    3.     if year % 100 == 0:
    4.         print("%d 是闰年" % year)
    5.     elif year % 25 == 0:
    6.         print("%d 不是闰年" % year)
    7.     else:
    8.         print("%d 是闰年" % year)
    9. else:
    10.     print("%d 不是闰年" % year)

    2.6 猜数字

    1. import random as rd
    3. init = rd.randint(1, 100)
    4. print("现在，随机生成了一个数，这个数在[1, 100]内")
    5. while True:
    6.     guess = int(input("猜猜看："))
    7.     if guess == init:
    8.         print("猜对了！游戏结束")
    9.         break
    10.     elif guess < init:
    11.         print("小了，再", end='')
    12.     else:
    13.         print("大了，再", end='')