return 退出循环

# !/usr/bin/env python
# -*- coding: utf-8 -*-
import subprocess
import re
import time

def ping(host):
    command = ["ping", host, "-c", "5", "-s","10000"]
    process = subprocess.Popen(command,stdout=subprocess.PIPE)
    output=process.communicate()
    print(len(output))
    i=0
    for x in output:
        result=x
        print("---------------------%s-----------------------" %i)
        print(result)
        print("---------------------%s-----------------------" %i)
        i=i+1
        # 用正则提取丢包信息
        pattern = re.compile(r'(\d+)% packet loss', re.S)