#!/usr/bin/env python
#-*- coding:utf-8 -*-
# author:Administrator
# datetime:2019/4/16 0016 21:18
# software: PyCharm

# s_age=input("请输入您的年龄:")
# age=int(s_age)
# if age > 20:
#     print("年龄已经大于20岁了")
#     print("20岁以上的人应该学会承担责任...")


# b=5
# if b > 4 :
#     print("b大于4")
# else:
#     b -= 1
#     print("b不大于4")

"""
s = ""
if s :
    print('s不是空字符串')
else:
    print('s是空字符串')
# 定义空列表
my_list = []
if my_list:
    print('my_list不是空列表')
else:
    print('my_list是空列表')
# 定义空字典
my_dict = {}
if my_dict:
    print('my_dict不是空字典')
else:
    print('my_dict是空字典')
"""

"""
s=input("请输入一个整数: ")
s=int(s)
if s > 5:
    print("大于5")
elif s < 5:
    pass
else:
    print("等于5")
"""

"""
s_age=input("请输入您的年龄: ")
age=int(s_age)
assert 20 < age < 80
print("您输入的年龄在20和80之间")
"""

# count_i=0
# while count_i < 10:
#     print("count:",count_i)
#     count_i +=1
# print("循环结束!")


# count_i2=0
# while count_i2 < 10:
#     print("不停执行的死循环:",count_i2)
#     count_i2 -=1
# print("永远无法跳出的循环体")

# count_i = 0
# while count_i < 10:
#     print('count_i的值',count_i)
#     count_i += 1


# a_tuple=('fkit','crazyit','Charli')
# i = 0
# while i < len(a_tuple):
#     print(a_tuple[i])
#     i += 1

"""
src_list=[12,45,34,13,100,24,56,74,109]
a_list=[]
b_list=[]
c_list=[]

while len(src_list) > 0:
    ele = src_list.pop()
    if ele % 3 == 0:
        a_list.append(ele)
    elif ele % 3 == 1:
        b_list.append(ele)
    else:
        c_list.append(ele)
print('整除3:',a_list)
print('除以3余1:',b_list)
print('除以3余2:',c_list)
"""

"""
s_max=input("请输入您想计算的阶乘:")
mx=int(s_max)
result=1
for num in range(1,mx +1):
    result *= num
print(result)
"""

# for i in range(1,5):
#     i=20
#     print("i: ",i)


