python3

源码如下

import os # 调用系统变量
import re # 正则表达式相关
import urllib
import urllib.request
import urllib.error
import urllib.parse

import json
import socket

import time

class ImoocSpider:

    headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36'}
    def getPythonInfo(self,keyWord):
        myKeyWord = urllib.parse.quote(keyWord)
        searchUrl='https://www.imooc.com/search/?words='+myKeyWord
        try:
            request = urllib.request.Request(url=searchUrl, headers=self.headers)
            page = urllib.request.urlopen(request)
            rsp = page.read().decode('unicode_escape')
        except UnicodeDecodeError as e:
                print(e)
                print('-----UnicodeDecodeErrorurl:', searchUrl)
        except urllib.error.URLError as e:
                print(e)
                print("-----urlErrorurl:", searchUrl)
        except socket.timeout as e:
                print(e)
                print("-----socket timout:", searchUrl)
        else:
                myres=rsp
                self.saveFile(myres,keyWord)
        finally:
                page.close()
                print("get_finally")

    def saveFile(self,res,keyWord):
            b="./" + keyWord +'.txt'
            if not os.path.exists(b): # 判断路径指定下是否存在文件/文件夹
                try :
                    fp=open(b,'w') 
                    print(res,file=fp) #print到文件
                except :
                    # print (e)
                    print('文件写入有误')
                finally :
                   fp.close()
                   print('save_finally')



    def start (self, keyWord):
        self.getPythonInfo(keyWord) 


if __name__ == '__main__':
    imoocInfo = ImoocSpider()
    imoocInfo.start('python')

测试了一下，就是编码的问题，open里面加一个参数

 encoding='utf-8'

应该是编码的问题
open(r'C:\nihao\result.txt','w',encoding='utf-8')
试试这个