27 lines
1.1 KiB
Python
27 lines
1.1 KiB
Python
from socket import *
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import time
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serverName = '127.0.0.1' # 服务器地址，本例中使用本机地址
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serverPort = 12000 # 服务器指定的端口
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clientSocket = socket(AF_INET, SOCK_DGRAM) # 创建UDP套接字，使用IPv4协议
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clientSocket.settimeout(1) # 设置套接字超时值1秒
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for i in range(0, 9):
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sendTime = time.time()
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message = ('Ping %d %s' % (i+1, sendTime)).encode() # 生成数据报，编码为bytes以便发送
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try:
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########## Begin ##########
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# 将信息发送到服务器
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clientSocket.sendto(message,(serverName,serverPort))
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# 从服务器接收信息，同时也能得到服务器地址
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modifiedMessage, serverAddress = clientSocket.recvfrom(1024)
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########## End ##########
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rtt = time.time() - sendTime # 计算往返时间
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print('Sequence %d: Reply from %s RTT = %.3fs' % (i+1, serverName, rtt)) # 显示信息
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except Exception as e:
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print('Sequence %d: Request timed out.' % (i+1))
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clientSocket.close() # 关闭套接字 |