成果

并没有处理好循环中的重复采集问题，实际上是不能用于多进程的
根据关键词txt（一行一个关键词），以下拉框为标准扩展关键词：

5OGB$AEQUJ`2V9E}ZA8J9FG.png

get_baidu_dasou（kw），get_sougou（kw），get_360（kw）
分别从三个搜索引擎获得扩展关键字，输入单个关键字(kw)，返回扩展数列(final_longtaikeywords))

read(kw,zm1s,resultpath)
整合以上3个方法：
输入的单个关键词kw，与zm1s拼音首字母列表中的zm1结合，形成真正的扩展关键词kw+zm1,
由于三个扩展来源的关键词有很多是重复的，需要将3个返回数列打散，重新输入新的数列，并排重
最后将结果写入文档

final(kw)
关键词要经过2轮的扩展
定义zmi1s,zm2s为不同的数列，分别和关键词整合
read分别执行2次；
read(kw,zm1s,resultpath)#第一次扩展，结果在resultpath
read(kw, zm2s, finalpath)#对第一个扩展结果再扩展，结果在finalpath
lastpath第一次和第二结果的去重整合

if name == 'main':
打开startpath1文件（初始扩展关键词文档）
形成关键词list，将执行多线程

代码

import requests
import re
import time
from multiprocessing import Pool
time1 = time.strftime("%H:%M:%S").replace(':','')
def get_baidu_dasou(keyword ='剑圣'):
    final_longtaikeywords=[]
    try:
        url1 = 'http://suggestion.baidu.com/su?json=1&p=3?wd=' + keyword
        url2 = 'http://suggestion.baidu.com/su?sugmode=2&json=1&wd=' + keyword
        reslt_baidu_dasou1 = requests.get(url1).text
        reslt_baidu_dasou2 = requests.get(url2).text
        kws = re.compile(r'"st": \{ "q": "(.*?)", "new":')
        kws_list_dasou1 = kws.findall(reslt_baidu_dasou1)
        kws_list_dasou2 = kws.findall(reslt_baidu_dasou2)
        for kws1 in kws_list_dasou1:
            final_longtaikeywords.append(kws1)
        for kws2 in kws_list_dasou2:
            final_longtaikeywords.append(kws2)
        print(str(keyword)+':'+str(final_longtaikeywords))
        return (final_longtaikeywords) #返回的是数列
    except Exception as e:
        time.sleep(5)
        print(e)
def get_sougou(keyword ='剑圣'):
    final_longtaikeywords=[]
    try:
        urlsougou = 'https://www.sogou.com/suggnew/ajajjson?key='+ keyword+'&type=web&ori=yes&pr=web'
        reslt_sougou_dasou1 = requests.get(urlsougou).text
        reslt_sougou_dasou1=reslt_sougou_dasou1.split('[')[2] #获得中间的长尾词结果
        kws = re.compile(r'"(.*?)",')
        kws_list_dasou1 = kws.findall(reslt_sougou_dasou1)
        for kws1 in kws_list_dasou1:
            final_longtaikeywords.append(kws1)
        print(str(keyword)+':'+str(final_longtaikeywords))
        return (final_longtaikeywords) #返回的是数列
    except Exception as e:
        time.sleep(5)
        print(e)
def get_360(keyword ='剑圣'):
    final_longtaikeywords=[]
    try:
        url360 = 'http://sug.so.360.cn/suggest?encodein=utf-8&encodeout=utf-8&format=json&fields=word,obdata&word='+ keyword
        reslt_360_dasou1 = requests.get(url360).text
        kws = re.compile(r'\{"word":"(.*?)"},')
        kws_list_dasou1 = kws.findall(reslt_360_dasou1)
        for kws1 in kws_list_dasou1:
            kws1 = re.sub('","obdata":"{.*}', '', kws1)
            final_longtaikeywords.append(kws1)
        print(str(keyword)+':'+str(final_longtaikeywords))
        return (final_longtaikeywords) #返回的是数列
    except Exception as e:
        time.sleep(5)
        print(e)

def read(kw,zm1s,resultpath):
    final_longtais=[]
    last_longtais=[]
    for zm1 in zm1s:
        print('百度搜索：'+kw+zm1)#是否还要判断
        final_longtais.append(get_baidu_dasou(kw+zm1))
        print('百度搜索：'  + zm1+ kw)
        final_longtais.append(get_baidu_dasou(zm1+kw))#其他搜索引擎
        print('搜狗搜索：' + kw + zm1)
        final_longtais.append(get_sougou(kw + zm1))#搜狗不做
        print('360搜索：' + kw + zm1)
        final_longtais.append(get_360(kw + zm1))
        print('360搜索：' + zm1+ kw)
        final_longtais.append(get_360(zm1+ kw))
    # 形成新的数列
        if final_longtais!=None:
            for final_longtai in final_longtais: #第一层数列
                if final_longtai != None:
                    for each_word in final_longtai:  #数列中的数列
                        last_longtais.append(each_word)
    # 对新数列去重
        last_longtais2 = list(set(last_longtais))#去重
        last_longtais2.sort(key=last_longtais.index)#按原来的排序
        print(last_longtais2)
        print(len(last_longtais2))
        with open(resultpath,'a+',encoding='utf-8') as text:#写入扩展结果
            for last_longtai in last_longtais2:
                text.write(last_longtai+'\n')
                #写进数据库



def final(kw):
    resultpath= r'C:/Users/Administrator/Desktop/result/xiala/'+time1+'resultkeywords.txt'
    finalpath = r'C:/Users/Administrator/Desktop/result/xiala/'+time1+'finalkeywords.txt'
    lastpath = r'C:/Users/Administrator/Desktop/result/xiala/' + time1 + 'lastpath.txt'
    zm1s=['',' ','a','b','c','d','e','f','g','h','j','k','l','m','n','o','p','q','r','s','t','w','x','y','z','0','1','2','3','4','5','6','7','8','9']
    #zm1s = ['']
    zm2s=['',' ']
    #zm2s = ['']
    lastlist=[]
    read(kw,zm1s,resultpath)#第一次扩展，结果在resultpath
    with open(resultpath, 'r', encoding='utf-8') as text: #对第一个扩展结果再扩展
        kwsline = text.readlines()
        for kw in kwsline:
            kw = kw.strip()  # 去除空行
            kw = kw.replace('\n', '')  # 替换最后一行
            read(kw, zm2s, finalpath)#对第一个扩展结果再扩展，结果在finalpath
            lastlist.append(kw)#第一次扩展结果写入最终列表
    with open(finalpath, 'r', encoding='utf-8') as text:    #读取第二个结果
        kwsline = text.readlines()
        for kw in kwsline:
            kw = kw.strip()  # 去除空行
            lastlist.append(kw)#第二次扩展结果写入最终列表
    lastlist2 = list(set(lastlist))  # 最终列表去重
    lastlist2.sort(key=lastlist.index)  # 按原来的排序
    print(len(lastlist2))
    with open(lastpath, 'a+', encoding='utf-8') as text:  #最终列表第三个结果
        for singlelastlist in lastlist2:
            text.write(singlelastlist + '\n')

if __name__ == '__main__':
    start = time.clock()
    pool = Pool(processes=6)
    keywords_list=[]
    startpath1 = r'C:\Users\Administrator\Desktop/result\xiala\testforkeywords.txt'  # 关键词存放的地方
    with open(startpath1, 'r', encoding='utf-8') as text:  # 打开关键词文件，做列表list
        kwsline = text.readlines()
        for kw in kwsline:
            kw = kw.strip()  # 去除空行
            kw = kw.replace('\n', '')  # 替换最后一行
            keywords_list.append(kw)
    pool.map(final,keywords_list)
    pool.close()
    pool.join()
    end = time.clock()
    print ("read: %f s" %(end - start))

注意事项

list去重,顺序不变

lastlist2 = list(set(lastlist)) # 最终列表去重
lastlist2.sort(key=lastlist.index) # 按原来的排序