00_year.py
-------------------------------------
#1.输入一个年份
#2.判断是否为闰年
#2.1. 条件1
#2.2 条件2
#and 表示并且 Fasle and True
#or 表示或者 Fasle or True
#!= 表示不等于
def year(a):
if a%4==0 and a%100 != 0:
print("{}是闰年".format(a))
elif a%400 == 0:
print("{}是闰年".format(a))
else:
print("{}不是闰年".format(a))
def year1(a):
if a%4==0 and a%100 != 0:
print("{}是闰年".format(a))
if a%400 == 0:
print("{}是闰年".format(a))
year1(1956)
-------------------------------------
01_student_system.py
-------------------------------------
#1.学生信息保存在字典里面
#2.所有的学生信息放在列表中
#while True
#3.打印提示
#4.用户输入
#5.拿到用户输入的结果
#6.根据结果选择要做的事情，即选择要调用的函数
#函数1.展示全部学生信息
#函数2.搜索一个学生
#函数3.增加一个学生
#函数4.修改一个学生
#函数5.删除一个学生
#7.用户退出，break
student_list = [{"name":"xiaohong","age":18,"stu_num":10000}]
def print_info():
print("*"*20) #3.打印提示
print("欢迎来到学生信息管理系统")
print("1.展示全部学生")
print("2.搜索一个学生")
print("3.增加一个学生")
print("4.修改一个学生")
print("5.删除一个学生")
print("6.退出信息系统")
print("*"*20)
user_input = input(">>>>请选择序号:") #4.用户输入
return user_input
def show_all_stu(): #展示所有的学生
for stu in student_list:
print(stu)
def search_stu(): #搜索学生
user_input_name = input(">>>>请输入学生的名字：")
stu_exist = False
for stu in student_list:
if stu["name"] == user_input_name:
stu_exist = True #如果学生存在，就让stu_exist变为True
print(stu)
if stu_exist == False:# if not stu_exist #if stu_exist !=True
print(">>>>您要搜索的学生不存在")
def add_stu():
stu_name = input("请输入要添加的学生姓名:")
stu_age = input("请输入要添加的学生年龄:")
stu_num = input("请输入要添加的学生学号:")
new_stu = {"name":stu_name,"age":stu_age,"stu_num":stu_num}
student_list.append(new_stu)
print("学生:{}信息添加成功".format(stu_name))
def modify_stu_info():
stu_name = input("请输入要修改的学生姓名:")
stu_exist = False
for stu in student_list:
if stu["name"] == stu_name:
stu_exist = True
stu_age = input("请输入修改后的年龄:")
stu_num = input("亲输入修改后的学号:")
stu["age"] = stu_age
stu["stu_num"] = stu_num
print("学生:{}信息更新成功".format(stu_name))
if not stu_exist:
print(">>>>您要修改的学生不存在")
def delete_stu_info():
stu_name = input("请输入要删除的学生姓名:")
stu_exist = False
for stu in student_list:
if stu["name"] == stu_name:
stu_exist = True
student_list.remove(stu)
print("学生:{}信息删除成功".format(stu_name))
if not stu_exist:
print(">>>>您要删除的学生不存在")
def main():
while True:
user_input = print_info() #5.拿到用户输入的结果
if user_input in ["1","2","3","4","5","6"]:
# print(user_input)
if user_input == "1": #展示所有的学生信息
show_all_stu()
elif user_input == "2": #搜索一个学生
search_stu()
elif user_input == "3": #增加一个学生
add_stu()
elif user_input == "4": #修改一个学生
modify_stu_info()
elif user_input == "5": #删除一个学生
delete_stu_info()
elif user_input == "6": #退出
print(">>>>再见")
break
else:
print("不好意思，你输入错误，请重新输入")
if __name__ == "__main__":
main()
-------------------------------------
02_if.py
-------------------------------------
money = input("请输入你口袋里的钱：")
money = int(money)
if money>25: #money>25的时候执行里面的内容
print("今晚吃鸡")
if 10<money <=25: #money大于10小于等于25的时候执行内部的语句
print("吃鱼")
print("1")
print("2") #注意语法，什么叫做在叫做在if内部，什么不在
if 0<money<=21: #money大于0小于等于21的时执行里面的语句
print("吃蔬菜")
if money == 0: #money等于0的时候执行其中的语句
print("不吃")
-------------------------------------
02_open_file.py
-------------------------------------
f = open("function1.py","r")
content = f.read()
f.close()
print(content)
-------------------------------------
02_write_file.py
-------------------------------------
f = open("a.txt","a")
f.write("hello\nworld")
f.close()
-------------------------------------
03_if_else.py
-------------------------------------
money = 20
if money>18:
print("吃饭")
else: #eles不需要条件，表示其他的条件都不满足的时候就执行else其中的语句
print("吃不起")
-------------------------------------
03_write_dict.py
-------------------------------------
import json
a = {"xiaohong":20,"xiaogang":21,"xiaoming":18}
str_a = json.dumps(a)
f = open("dict.txt","w")
f.write(str_a)
f.close()
-------------------------------------
04_if_elif_elif_else.py
-------------------------------------
money = 20
if money>30:
print(1)
elif 20<=money<=30:
print(2)
elif 10<money<=20: #可以有多个elif
print(3)
else: #不需要条件，表示上面都不满足的时候执行他
print(4)
-------------------------------------
04_read_dict.py
-------------------------------------
import json
f = open("dict.txt","r")
content = f.read()
f.close()
content = json.loads(content)
print(content)
print(type(content))
-------------------------------------
05_for_in.py
-------------------------------------
a = [1,2,3,4,5,6,7,8,9,10]
for i in a: #循环，i挨个获取a里面的内容，获取一个之后执行其中的语句，执行完了，a取下一个值
print("现在执行第{}次循环".format(i)) #pep8规范
print("*"*10)
-------------------------------------
05_try_json.py
-------------------------------------
import json
temp_str = '''{"message": "success", "data": {"pc_feed_focus": [{"title": "\u6cf0\u56fd\u60bc\u5ff5\u5148\u738b\u666e\u5bc6\u84ec\u901d\u4e16\u4e00\u5468\u5e74 \u6c11\u4f17\u75db\u54ed\u6d41\u6d95\u60b2\u4f24\u4e0d\u5df2", "display_url": "/group/6476284682694770958/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3efc00015ef61bd59793", "has_image": true, "group_id": 6476284682694770958, "media_url": "http://toutiao.com/m5784742177"}, {"title": "\u5976\u7238\u5976\u5988\u548c\u201c\u6eda\u6eda\u201d\u7684\u6e29\u99a8\u65f6\u523b \u8fd9\u79cd\u6574\u5929\u88ab\u62b1\u5927\u817f\u7684\u5de5\u4f5c\u8fd8\u62db\u4eba\u5417", "display_url": "/group/6476661517630521613/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3f0000028b49efb750fd", "has_image": true, "group_id": 6476661517630521613, "media_url": "http://toutiao.com/m52307864703"}, {"title": "\u738b\u529b\u5b8f\u5316\u8eab\u5341\u8db3\u5976\u7238 \u81ea\u66dd\u6bcf\u665a\u5531\u6447\u7bee\u66f2\u54c4\u5973\u513f\u5165\u7761", "display_url": "/group/6476596750801961486/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3f0000029e48818f96b2", "has_image": true, "group_id": 6476596750801961486, "media_url": "http://toutiao.com/m50266454509"}, {"title": "\u82f1\u8d856\u5927\u8c6a\u5f3a\u51fa\u6218\u51b7\u95e8\u8fed\u7206 \u84dd\u519b\u8001\u53f8\u673a\u7ffb\u8f66\u67aa\u624b\u5c06\u7b2c\u56db\u62f1\u624b\u76f8\u8ba9", "display_url": "/group/6476823272394621197/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3e83001d1069922b1865", "has_image": true, "group_id": 6476823272394621197, "media_url": "http://toutiao.com/m1564293928517634"}, {"title": "\u7f8e\u56fd\u201c\u5bc6\u6b47\u6839\u201d\u6838\u6f5c\u8247\u62b5\u8fbe\u97e9\u56fd\u91dc\u5c71", "display_url": "/group/6476295974415253774/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3f000002a53197ce328f", "has_image": true, "group_id": 6476295974415253774, "media_url": "http://toutiao.com/m5784742177"}, {"title": "\u738b\u4e3d\u5764\u201c\u638c\u63b4\u201d\u9ad8\u4ee5\u7fd4 \u803f\u76f4girl\u5f53\u573adiss", "display_url": "/group/6476378421324054798/", "has_video": false, "image_url": "//p1.pstatp.com/large/3eff0002ddd80c819c3d", "has_image": true, "group_id": 6476378421324054798, "media_url": "http://toutiao.com/m50092288407"}, {"title": "Selina\u59b9\u59b9\u4efb\u5bb9\u8431\u8981\u5f53\u5317\u6f02\uff0c\u5979\u7684\u5185\u5fc3\u4f4f\u7740\u4e00\u53ea\u201c\u5c0f\u91ce\u517d\u201d\u4e28\u4e13\u8bbf", "display_url": "/group/6475216013678871054/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3f000000303ddc1dac0f", "has_image": false, "group_id": 6475216013678871054, "media_url": "http://toutiao.com/m50266454509"}, {"title": "\u4e2d\u56fd\u9996\u6b21\u66dd\u5149\u6b7c15\u8230\u8f7d\u673a\uff1a\u4f7f\u7528\u56fd\u4ea7\u7535\u78c1\u5f39\u5c04\u5668\u8d77\u98de\u6210\u529f", "display_url": "/group/6475921837753631246/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3efd0008478ac3f4d442", "has_image": false, "group_id": 6475921837753631246, "media_url": "http://toutiao.com/m4087561186"}, {"title": "\u6700\u5f3a\u7ae5\u989c\u5f20\u5a1c\u62c9\u4e0a\u7ebf \u643a\u624b\u5b59\u6d69\u4fca\u751c\u871c\u6c14\u6c1b\u6ea2\u51fa\u5c4f\u5e55~", "display_url": "/group/6475921668145938702/", "has_video": false, "image_url": "//p9.pstatp.com/origin/3efd00084767b74b0980", "has_image": true, "group_id": 6475921668145938702, "media_url": "http://toutiao.com/m5738017030"}, {"title": "E\u795e\u9a7e\u5230\uff01\u9648\u5955\u8fc5\u65b0\u6b4c\u97f3\u4e50\u4f1a\u5fc3\u60c5\u7206\u597d\uff0c\u624b\u821e\u8db3\u8e48\u641e\u602a\u4e0d\u505c~", "display_url": "/group/6475901594457080077/", "has_video": false, "image_url": "//p3.pstatp.com/origin/3e8200187999129ae0cd", "has_image": true, "group_id": 6475901594457080077, "media_url": "http://toutiao.com/m5738017030"}]}}'''
temp_dict = json.loads(temp_str)
# print(temp_dict)
#希望把temp_dict写入本地
f = open("touitao.txt","w",encoding="utf-8")
f.write(json.dumps(temp_dict,ensure_ascii=False,indent=2))
f.close()
-------------------------------------
06_range.py
-------------------------------------
# my_list = range(100) #生成一个包含0-99的100个数字的可迭代对象，可以使用for in 循环遍历
my_list = list(range(100)) #编程一个列表
for i in my_list:
print("当前的i是{}".format(i))
-------------------------------------
07_while.py
-------------------------------------
number_a = 1
while number_a<10: #while后面接条件，表什么时候里面的内容执行，什么时候不执行
print("当前a是{}".format(number_a))
# number_a = number_a+1
number_a += 1 #当前一行和上一行的相同，意思相同
print("程序结束")
-------------------------------------
08_odd.py
-------------------------------------
a = 1
sum = 0 #和最开始的为0
while a<=100:
if a%2==0: #判断a是否为偶数
sum = sum+a #用和加上每一个偶数
a = a+1 #让a加上1
print("sum为{}".format(sum))
-------------------------------------
09_sum100.py
-------------------------------------
a = 1
sum = 0
while a<=100:
if sum>100:
break #当sum大于100的时候，后面的循环就不在执行了
sum = sum+a
# if sum>100:
# break
a = a+1
print("1-100中前n个数的和刚好大于100的第一个数是{}".format(sum))
for i in range(100):
if i>10:
break #i大于10的时候，停止循环
print(i)
for i in rage(10): #当前prin(i)是不会有任何的现象的，第一次就break了
break
print(i)
-------------------------------------
10_continue.py
-------------------------------------
for i in range(10):
if i == 5:
continue #跳出了i=5的这次的循环，继续选择i=6的结果
print(i)
-------------------------------------
11_even_sum.py
-------------------------------------
sum = 0
for i in range(1,101):
if i%2 == 0: #当前的条件成立表示i是偶数
continue
print(i)
sum = sum + i
print("1-100内的所有的奇数的和市{}".format(sum))
-------------------------------------
12_try_def.py
-------------------------------------
def print_helloworld(): #定义一个函数，需要有def关键字，函数名，（）和冒号，换行后下面的内容是函数体
print("hello,world")
print("are you ok")
# print_helloworld()
# print_helloworld()
for i in range(100):
print_helloworld()
-------------------------------------
13_try_def_2.py
-------------------------------------
def print_my_word(a): #带一个参数的函数
print("this is {}".format(a))
print_my_word("ARE YOU OK")
print_my_word(["1","2"])
-------------------------------------
14_get_volume.py
-------------------------------------
def get_volume(a):
# print("正方体边长为{}的体积为:".format(a),a*a*a)
print("正方体边长为{}的体积为:{}".format(a,a*a*a))
def get_volume2(a,b,c): #长方体的体积 #带多个参数的函数
print("长方体边长分别为{}，{}，{}的体积为:{}".format(a,b,c,a*b*c))
c = get_volume(10) #c为调用这个函数的结果，但是当前函数并没有任何的结果，所以c为None
print(c)
get_volume2(10,20,30)
-------------------------------------
15_get_volume2.py
-------------------------------------
def get_volume(a):
# print("正方体边长为{}的体积为:".format(a),a*a*a)
v1 = a*a*a
print("正方体边长为{}的体积为:{}".format(a,v1))
return v1 #有返回值的函数
def get_volume2(a,b,c): #长方体的体积
v2 = a*b*c
v3 = v2+100
print("长方体边长分别为{}，{}，{}的体积为:{}".format(a,b,c,v2))
return v2,v3 #遇到return，return后面的程序都不会在执行 #有多个返回值的函数
# return v3
# print("*"*100)
v1 = get_volume(100)
print(v1)
v2,v3 = get_volume2(10,20,30)
print(v2,v3)
if v1>v2:
print("正方体的体积大")
elif v1<v2:
print("长方体的体积大")
else:
print("两个体积相等")
-------------------------------------
16_temp.py
-------------------------------------
def func():
for i in range(3):
return i
def func2():
d = func() #函数的嵌套调用
print(d)
# d = func()
# print(d)
func2()
-------------------------------------
17_gobal_v.py
-------------------------------------
a = 100
def test1():
a = 200 #定义了一个局部变量a=200，没有修改全局变量a
print("局部变量a的值是",a)
def test2(): #修改全局变量a =300
global a #声明a是一个全局变量
print("修改之前a是",a)
a = 300
print("修改之前a是",a)
def test3():
print("这是test3函数，a是",a)
test1()
test2()
test3()
#只有在函数中才有全局变量局部变量一说，这里的j，在下一个循环中就是之前的j的值
for i in range(100):
j = i
# print(i)
for i in range(3):
print("this is j",j)
print(i)
-------------------------------------
a.txt
-------------------------------------
hello
worldhello
world
-------------------------------------
dict.txt
-------------------------------------
{"xiaohong": 20, "xiaogang": 21, "xiaoming": 18}
-------------------------------------
function1.py
-------------------------------------
def my_func():
print("hello,world!")
if __name__ == "__main__":
print("this is function1...")
-------------------------------------
temp1.py
-------------------------------------
# import function1
from function1 import my_func
# function1.my_func()
my_func()
-------------------------------------
touitao.txt
-------------------------------------
{
"message": "success",
"data": {
"pc_feed_focus": [
{
"title": "泰国悼念先王普密蓬逝世一周年 民众痛哭流涕悲伤不已",
"display_url": "/group/6476284682694770958/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3efc00015ef61bd59793",
"has_image": true,
"group_id": 6476284682694770958,
"media_url": "http://toutiao.com/m5784742177"
},
{
"title": "奶爸奶妈和“滚滚”的温馨时刻 这种整天被抱大腿的工作还招人吗",
"display_url": "/group/6476661517630521613/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3f0000028b49efb750fd",
"has_image": true,
"group_id": 6476661517630521613,
"media_url": "http://toutiao.com/m52307864703"
},
{
"title": "王力宏化身十足奶爸 自曝每晚唱摇篮曲哄女儿入睡",
"display_url": "/group/6476596750801961486/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3f0000029e48818f96b2",
"has_image": true,
"group_id": 6476596750801961486,
"media_url": "http://toutiao.com/m50266454509"
},
{
"title": "英超6大豪强出战冷门迭爆 蓝军老司机翻车枪手将第四拱手相让",
"display_url": "/group/6476823272394621197/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3e83001d1069922b1865",
"has_image": true,
"group_id": 6476823272394621197,
"media_url": "http://toutiao.com/m1564293928517634"
},
{
"title": "美国“密歇根”核潜艇抵达韩国釜山",
"display_url": "/group/6476295974415253774/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3f000002a53197ce328f",
"has_image": true,
"group_id": 6476295974415253774,
"media_url": "http://toutiao.com/m5784742177"
},
{
"title": "王丽坤“掌掴”高以翔 耿直girl当场diss",
"display_url": "/group/6476378421324054798/",
"has_video": false,
"image_url": "//p1.pstatp.com/large/3eff0002ddd80c819c3d",
"has_image": true,
"group_id": 6476378421324054798,
"media_url": "http://toutiao.com/m50092288407"
},
{
"title": "Selina妹妹任容萱要当北漂，她的内心住着一只“小野兽”丨专访",
"display_url": "/group/6475216013678871054/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3f000000303ddc1dac0f",
"has_image": false,
"group_id": 6475216013678871054,
"media_url": "http://toutiao.com/m50266454509"
},
{
"title": "中国首次曝光歼15舰载机：使用国产电磁弹射器起飞成功",
"display_url": "/group/6475921837753631246/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3efd0008478ac3f4d442",
"has_image": false,
"group_id": 6475921837753631246,
"media_url": "http://toutiao.com/m4087561186"
},
{
"title": "最强童颜张娜拉上线 携手孙浩俊甜蜜气氛溢出屏幕~",
"display_url": "/group/6475921668145938702/",
"has_video": false,
"image_url": "//p9.pstatp.com/origin/3efd00084767b74b0980",
"has_image": true,
"group_id": 6475921668145938702,
"media_url": "http://toutiao.com/m5738017030"
},
{
"title": "E神驾到！陈奕迅新歌音乐会心情爆好，手舞足蹈搞怪不停~",
"display_url": "/group/6475901594457080077/",
"has_video": false,
"image_url": "//p3.pstatp.com/origin/3e8200187999129ae0cd",
"has_image": true,
"group_id": 6475901594457080077,
"media_url": "http://toutiao.com/m5738017030"
}
]
}
}
-------------------------------------
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