33 udp协议编码  显示客户端名字,输出带颜色的内容 udp协议的时间同步机制  #一.udp  协议编码  一个服务器,多个客户端 #服务器: # import socket # sk=socket.socket(type=socket.SOCK_DGRAM) # sk.bind(("127.0.0.1",8801)) # while True: #     msg,addr=sk.recvfrom(1024) #     print(msg.decode("utf-8"),addr) #     msg1=msg.decode("utf-8") #     if msg1=="q": #         continue #     con=input("<<<").encode("utf-8") #     sk.sendto(con,addr) #     if con =="q": #         break # sk.close() #客户端 # import socket # sk=socket.socket(type=socket.SOCK_DGRAM) # while True: #     con1=input("<<<").encode("utf-8") #     sk.sendto(con1,("127.0.0.1",8801)) #     if con1=="q": #         break #     msg_c,addr=sk.recvfrom(1024) #     print(msg_c.decode("utf-8")) #     msg2=msg_c.decode("utf-8") #     if msg2=="q": #         break # sk.close() # 二.优化代码显示客户端名字 #服务器 # import socket # sk=socket.socket(type=socket.SOCK_DGRAM) # sk.bind(("127.0.0.1",8801)) # while True: #     msg,addr=sk.recvfrom(1024) #     print(msg.decode("utf-8"),addr) #     msg1=msg.decode("utf-8") #     if msg1=="q": #         continue #     con=input("<<<").encode("utf-8") #     sk.sendto(con,addr) #     if con =="q": #         break # sk.close() #客户端 # import socket # sk=socket.socket(type=socket.SOCK_DGRAM) # name=input("请输入名字:") # while True: #     con1=input("<<<") #     con1=name+":"+con1 #     sk.sendto(con1.encode("utf-8"),("127.0.0.1",8801)) #     if con1=="q": #         break #     msg_c,addr=sk.recvfrom(1024) #     print(msg_c.decode("utf-8")) #     msg2=msg_c.decode("utf-8") #     if msg2=="q": #         break # sk.close() #三.输出带颜色的字(一个客户端) #服务器: # import socket # sk=socket.socket(type=socket.SOCK_DGRAM) # sk.bind(("127.0.0.1",8801)) # while True: #     msg,addr=sk.recvfrom(1024) #     msg_c=msg.decode("utf-8") #     print("\033[0;35;41m%s,%s\033[0m"%(msg_c,addr)) # #     if msg_c=="q": #         continue #     con=input("<<<").encode("utf-8") #     sk.sendto(con,addr) #     if con =="q": #         break # sk.close() #四.输出带颜色的文字( 一个服务器 多个客户端) #服务器 # import socket # sk=socket.socket(type=socket.SOCK_DGRAM) # sk.bind(("127.0.0.1",8801)) # dic={"alex":"\033[0;35;41m","太白":"\033[0;32;40m"} # while True: #     msg,addr=sk.recvfrom(1024) #     msg_c=msg.decode("utf-8") #     name=msg_c.split(":")[0].strip() #     print(name) #     color=dic.get(name,"") #     print("%s%s\033[0m" % (color,msg_c)) # #     if msg_c=="q": #         continue #     con=input("<<<").encode("utf-8") #     sk.sendto(con,addr) #     if con =="q": #         break # sk.close() #五.基于udp协议的时间同步机制 #服务器 # import socket # import time # sk=socket.socket(type=socket.SOCK_DGRAM) # sk.bind(("127.0.0.1",8801)) # while 1: #     tm_format,addr=sk.recvfrom(1024) #     tm_format=tm_format.decode("utf-8") #     local_time=time.strftime(tm_format) #     sk.sendto(local_time.encode("utf_8"),addr) # sk.close() #客户端 # import socket # import time # sk=socket.socket(type=socket.SOCK_DGRAM) # tm_format=input(">>>") # while 1: #     sk.sendto(tm_format.encode("utf-8"),("127.0.0.1",8801)) #     local_time,addr=sk.recvfrom(1024) #     print(local_time.decode("utf-8")) #     time.sleep(5)    #五秒出一个 # sk.close()