ping

# -*- coding:utf-8 -*-
import os
import time
import datetime
import subprocess
retrytime = 0


def mprint(str):
    print "#############   " + str.decode('utf-8') + "   #############"

def mNetPing(pingUrl):  #  mNetPing('jd.com')
    global retrytime
    print "開始檢查網絡情況,請耐心等待".decode('utf-8')
    p = subprocess.Popen(["ping.exe", pingUrl],
                         stdin=subprocess.PIPE,
                         stdout=subprocess.PIPE,
                         stderr=subprocess.PIPE,
                         shell=True)
    out = p.stdout.read()
    # print out
    out = out.decode('GB2312').encode('utf-8')  # 轉成utf8方便比較

    if "(0% 丟失)" in out:#不能用 0% 丟失  由於100% 丟失包含 0% 丟失  恰好0的左邊是10  因此改爲(0%是能夠的 加個括號
        mprint("#############################網絡正常#############################")
    elif "(100% 丟失)" in out:#網線鏈接正常 沒法訪問域名
        mprint("#####################域名故障，請檢查電腦可否訪問 www.jd.com##################")
        os.system("pause")
        mNetPing(pingUrl)
    elif "找不到主機" in out:#網線斷開
        mprint("###########################請檢查本機網絡是否正常鏈接 3秒後自動從新檢測###########################")
        time.sleep(3)
        retrytime = retrytime + 1
        #os.system("pause")
        mprint("第"+str(retrytime)+"次重試")
        mNetPing(pingUrl)
    else:#請求超時
        mprint("網絡不穩定 是否繼續？按任意鍵繼續")

        os.system("pause")
        # print chardet.detect(out.decode('GB2312').encode('utf-8'))
        # mlost="100% 丟失".decode('utf-8')
        # print chardet.detect(mlost)
        # print mlost
if __name__ == '__main__':
    # os.system("pause")
    print time.localtime()#<type 'time.struct_time'>
    print time.strftime('%Y-%m-%d', time.localtime(time.time()))
    print time.strftime('%H:%M:%S', time.localtime(time.time()))
    print time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
    mNetPing('jd.com')
    mprint("程序測試結束")

 

我在京東爬蟲中用的到判斷網絡情況的代碼，核心代碼以下：

    p = subprocess.Popen(["ping.exe", pingUrl], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True) out = p.stdout.read()再根據out的內容本身判斷吧！