Python练练手

#话不多说，直接上代码~
print("----------------------------start----------------------------")

print("1.我要输出列表list")
list = [1,2,3,4,5]
print(list)

print("2.我要写个函数")
def printname(str):
    print(str)
printname("testnow")

#----------------------------设计了增删查功能start----------------------------
tasks = []
def add_task(task):
    tasks.append(task)
    print("task add success!")

def show_task():
    if not tasks:
        print("not task")
    else:
        for index, task in enumerate(tasks,start=1):
            print(f"{index}.{task}")

def remove_task(index):
    if 1 <= index <= len(tasks):
        remove_task = tasks.pop(index - 1)
        print(f"task '{remove_task}' removed! ")
    else:
        print("print false")

print("now let us test")
add_task("添加任务1")
show_task()
remove_task(1)
#----------------------------设计了增删查功能end----------------------------

#----------------------------我要写一个接口start----------------------------
class interface(object):
    def pp(self):
        pass

class use_interface(interface):
    def __init__(self) -> None:
        # super().__init__()
        pass
    def pp(self):
        # return super().pp()
        print ("use interface")
obj=use_interface()
obj.pp()
#----------------------------我要写一个接口end----------------------------

#----------------------------我要写一个连接网络start----------------------------
#server.py 需要先执行server.py，再执行client.py
import socket
import sys
servercoket=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host=socket.gethostname()
port=9999
servercoket.bind((host , port))
servercoket.listen(5)

while True:
    clintsoket, addr = servercoket.accept()
    print("连接地址:%s" %str(addr))
    msg = 'hello world'
    clintsoket.send(msg)
    clintsoket.close()

#client.py
import socket
import sys
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host=socket.gethostname()
port=9999

s.connect((host,port))
msg = s.recv(1024)
s.close()
print(msg)
#----------------------------我要写一个连接网络end----------------------------

#----------------------------我要写一个多线程start----------------------------
import threading
class mythread(threading.Thread):
    def __init__(self,name):
        threading.Thread.__init__(self)# 初始化要加self，导入值
        self.name = name
    def run(self):
        print("run thread test:" + self.name)

thread1 = mythread("thread1")
thread2 = mythread("thread2")
threads = []  #创建list存放多个线程
threads.append(thread1)  #添加进list
threads.append(thread2)

for t in threads:
    t.start() #开启线程

for t in threads:
    t.join() #启动线程
#----------------------------我要写一个多线程end----------------------------

#----------------------------我要写一个请求start----------------------------
import urllib.request
x = urllib.request.urlopen('http://baidu.com')
content = x.read() #读取URL内容
f = open("chuting.html","wb") #创建html
f.write(content) #读取的URL存入html
f.close()
print(x.getcode()) #返回执行结果
#----------------------------我要写一个请求end----------------------------

#----------------------------我要写一个list的小函数start----------------------------
import operator
mylsit = [1,2,3,11,4,5,6,7,0]
print("max" , max(mylsit) , "min" , min(mylsit)) #逗号
#----------------------------我要写一个list的小函数end----------------------------

print('------斐波那契数列-------')
a = 0
b = 1
num = 10
i = 2
if num <= 0:
    print('print num need >= 0')
elif num == 1:
    print(a)
else:
    print(a,b,end=' ')
    while i< num:
        sum = a + b
        print(sum,end=' ')
        a = b
        b = sum
        i += 1

#Python并发
class mythread(threading.Thread):
    def __init__(self, name):
        threading.Thread.__init__(self)
        self.name = name
    def run(self):
        print("name is :" + self.name)

thread1 = mythread("hello")
thread2 = mythread("world")
thread1.start()
thread2.start()