循環下載圖片，跳過不可用url

#coding utf-8

import cookielib
import urllib2,re,urllib

turl='http://www.test.saofang.cn/service/agent/agentHouseRent.do'
purl='http://www.test.saofang.cn/pub/doAgentLogin.do'   #處理post數據的url


data={'userName':13316750525,'userPwd':123456789}  #post數據，根據實際情況。
post_data=urllib.urlencode(data)  # post數據編碼


headers={'Host':'www.test.saofang.cn','Referer':'http://www.test.saofang.cn/pub/agentLogin.do'}


cookieJar=cookielib.CookieJar()   #初始化cookie對象
cookie_support=urllib2.HTTPCookieProcessor(cookieJar)  #處理cookie的程序  用於下載  上傳cookie


open=urllib2.build_opener(cookie_support,urllib2.HTTPHandler)


urllib2.install_opener(open)

request=urllib2.Request(purl,post_data,headers)

response=urllib2.urlopen(request) # get cookie

#tn=urllib2.Request(turl)
#tnl=urllib2.urlopen(tn)
tnl=urllib2.urlopen(turl)

text=tnl.read()

req='</strong>/</em><span>.+?(\d+)</b>'   #login success?difference,確認cookie登錄成功
lcc=re.search(req,text)
print lcc
tc=re.findall(req,text)
print tc
for list in tc:
    print list




if lcc:
    print 'login success!'
else:
    print 'login fail'
#print lcc.group()

surl='http://www.test.saofang.cn/service/agent/agentHouseRent.do'
type=['Rent','Sold']
tp=['zf','sp','xzl']
http='http://www.test.saofang.cn/service/agent/agentHouse'
zs='.do?houseUsage='
for ty in type:
    for tss in tp:
        # 二手房時參與變化
        if ty=='Sold' and tss=='zf':
            tss='esf'

        https=http+ty+zs+tss
        hss=http+ty+'.do'
        print https
        print hss
    #page=1
        for page in range(1,44):
            data1={'pageIndex':page,'houseState':'PUB','houseUsage':tss}
            print data1
            data=urllib.urlencode(data1)
            headers={'Host':'www.test.saofang.cn','Referer':https}
            reque=urllib2.Request(hss,data,headers)
            #print reque
            t2=urllib2.urlopen(reque)
            rt2=t2.read()
            #print rt2

            reqq="src='(.+?min\.jpg)"
            reqq_list=re.findall(reqq,rt2)
            #print reqq_list
            m=0
            for list in reqq_list:
                s='%d'%m
                p='%d'%page
                #print s, p, list
                print 'e:\\img\\'+ty+tss+p+s+'.jpg'
                sre='http://.+\\.+\\'
                m+=1
                print m
                print list
#檢查鏈接是否可用，不可用時跳過下載圖片。
                try:
                    urllib2.urlopen(list).read()
                except:
                    continue
                #保存圖片的命名規則
                filename='e:\\img\\'+ty+'_'+tss+'_'+p+'_'+s+'.jpg'
                urllib.urlretrieve(list,filename)

1.下載圖片問題1  地址打不開時跳過處理過程

2.Url中有反斜槓，暫時沒處理這類情況。