<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Serious510的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Serious510</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Serious510]]></copyright><item><title><![CDATA[2021-06-24]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/118198043</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/118198043</guid><author>Serious510</author><pubDate>Thu, 24 Jun 2021 23:35:49 +0800</pubDate><description><![CDATA[大数据原理出错
配置完虚拟机上的操作忘记重启虚拟机导致不能和xshell连接

之前那种错误的状态没有退出，无法对文件进行压缩

环境变量没有搭建好，在选择执行命令的时候系统无法找到hdfs这个命令。解决方法通过PATH环境变量来调用，或者使用绝对路径去进入文件夹。
没有使用管理员身份进行
在安装虚拟机时，第一遍安装过之后，所使用的光驱需要移除，不然会一直显示已安装，是否需要重新安装。
在已经输入过双向拖拽的代码之后，还是无法将主机上的文件或者复制粘贴拖拉进虚拟机可能是在虚拟机内部的设备框没有开启共享文件夹]]></description><category></category></item><item><title><![CDATA[统计字数]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109805867</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109805867</guid><author>Serious510</author><pubDate>Thu, 19 Nov 2020 11:24:52 +0800</pubDate><description><![CDATA[# 整合代码，并输出
# 打开并读取文件
file = open('Walden.txt','r')
lines = file.readlines()
# 要把每行拆成单词
words = []
for line in lines:
    tmp_list = line.split(" ")
    for word in tmp_list:
        words.append(word.replace(',','').replace('.','').replace('"','').replace(]]></description><category></category></item><item><title><![CDATA[统计字数]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109721065</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109721065</guid><author>Serious510</author><pubDate>Mon, 16 Nov 2020 14:44:27 +0800</pubDate><description><![CDATA[f = open('Walden.txt','r')

lines = f.readlines()

b = open('Walden.txt','r').read()

type(b)

str

b=b.replace(",","")
b=b.replace(".","")
b=b.replace("?","")
b=b.replace("!","")
b=b.replace("'","")
b=b.replace("’","")
b=b.replace("”“","")

b = b.split()
]]></description><category></category></item><item><title><![CDATA[猜数字]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109583345</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109583345</guid><author>Serious510</author><pubDate>Mon, 09 Nov 2020 18:42:29 +0800</pubDate><description><![CDATA[import random
随机数 = random.randint(1, 100)
猜的数字 = 0
次数 = 0
print("数字从1到100，你只有5次机会！")
while int(猜的数字) != 随机数 and 次数 &lt; 5:
    print("你猜的数字是？")
    猜的次数 = input()
    if int(猜的数字) &lt; 随机数:
        print("数字太小了！")
    elif int(猜的数字) &gt; 随机数:
        prin]]></description><category></category></item><item><title><![CDATA[while中的break和continue区别]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109563556</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109563556</guid><author>Serious510</author><pubDate>Sun, 08 Nov 2020 19:43:57 +0800</pubDate><description><![CDATA[break
i = 0
while i&lt;=10:
    print("hello zfc")
    if i ==5:
        break
    i +=1
print("hi zfc")
hello zfc
hello zfc
hello zfc
hello zfc
hello zfc
hello zfc
hi zfc

continue
i = 0
while i&lt;=10:
    print("hello zfc")
    if i ==5:
        continu]]></description><category></category></item><item><title><![CDATA[集合]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109563126</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109563126</guid><author>Serious510</author><pubDate>Sun, 08 Nov 2020 19:08:44 +0800</pubDate><description><![CDATA[集合的创建
集合里面的元素是不可重复的
sets = {1,2,3,1,2,3,4,5,6}
print(type(sets))
print(sets)
&lt;class 'set'&gt;
{1, 2, 3, 4, 5, 6}

添加元素
sets.add(10)   ###增加一个元素
print(sets)
{1, 2, 3, 4, 5, 6, 10}

sets.update([9,8,7])  ###添加多个元素
print(sets)
{1, 2, 3, 4, 5, 6, 7, 8, 9, 1]]></description><category></category></item><item><title><![CDATA[元组]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109562839</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109562839</guid><author>Serious510</author><pubDate>Sun, 08 Nov 2020 18:41:57 +0800</pubDate><description><![CDATA[元组的创建
tuple=()圆括号，没有元素表示空元组
tuple=(1,2,3,"a","b")
索引
元组的索引同列表的索引方式一样，tuple[ index ]
tuple[2]
3

tuple[:1]
(1,)

tuple[2:]
(3, 'a', 'b')

tuple[::2]
(1, 3, 'b')

查找元素的位置 tuple.index()
tuple.index("a")
3

元组的添加
tuple = tuple + ('x',) 
print(tuple)
(1, 2, 3, ]]></description><category></category></item><item><title><![CDATA[字典]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109558309</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109558309</guid><author>Serious510</author><pubDate>Sun, 08 Nov 2020 13:16:08 +0800</pubDate><description><![CDATA[字典的创建
字典是无序、可变的序列用{}表示
格式：d = {key1 : value1, key2 : value2 }
keys = ['a', 'b', 'c','d']
values = [1, 2, 3, 4]
dic = dict(zip(keys, values))
print("dic:",dic)
dic: {'a': 1, 'b': 2, 'c': 3, 'd': 4}

选取原先dic中的一部分元素
dic1 = dict(a = 1, b = 2, c = 3)
print("dic]]></description><category></category></item><item><title><![CDATA[Untitled4]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109500592</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109500592</guid><author>Serious510</author><pubDate>Wed, 04 Nov 2020 22:17:07 +0800</pubDate><description><![CDATA[all_in_list = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,37,38,39]
del all_in_list[0]
all_in_list
[2,
 3,
 4,
 5,
 6,
 7,
 8,
 9,
 10,
 11,
 12,
 13,
 14,
 15,
 16,
 17,
 18,
 19,
 20,
 21,
 22,
 ]]></description><category></category></item><item><title><![CDATA[2020-10-27]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109292356</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109292356</guid><author>Serious510</author><pubDate>Tue, 27 Oct 2020 12:18:04 +0800</pubDate><description><![CDATA[关于GitHub及Git的使用
对于新手来说学会GitHub传输代码或者其他文件，用github再好不过了。下面就来介绍步骤
步骤
1.登录
1.首先先注册一个GitHub的账号
2.到https://git-scm.com/download/win下载相应版本的安装包进行安装；
3.安装完成后，以桌面为例，点击鼠标右键，点击git bash
会有出现以下弹窗：

接着你需要登录进去
git config --global user.name “Your Name”
git config --global ]]></description><category></category></item><item><title><![CDATA[markdown]]></title><link>https://blog.youkuaiyun.com/Serious510/article/details/109275223</link><guid>https://blog.youkuaiyun.com/Serious510/article/details/109275223</guid><author>Serious510</author><pubDate>Sun, 25 Oct 2020 16:28:23 +0800</pubDate><description><![CDATA[week1作业
基本的markdown操作
basic
多少个#号就是第几级标题 例如：
一级标题
二级标题
三级标题
一个星号就斜体
两个星号就是加粗
三个星号的是加粗斜体
~~两个是被删除的文字~

引用了简书上的内容



极大的帮助了不熟悉markdown语法的人





几个&gt;代表第几个引用



这是一条分割线 用三个以上的* 来实现分割

代码的第一行表示表头，第二行分隔表头和主体部分，从第三行开始，每一行代表一个表格行；列与列之间用符号“｜”隔开，表格每一行的两边也要有符号“｜”

]]></description><category></category></item></channel></rss>