<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[akago9的博客]]></title><description><![CDATA[无]]></description><link>https://blog.youkuaiyun.com/akago9</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; akago9]]></copyright><item><title><![CDATA[高级编程技术作业_20 sklearn]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80740714</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80740714</guid><author>akago9</author><pubDate>Wed, 20 Jun 2018 00:41:03 +0800</pubDate><description><![CDATA[题目：



代码展示：

from sklearn import datasets, cross_validation, metrics
from sklearn.naive_bayes import GaussianNB
from sklearn.svm import SVC
from sklearn.ensemble import RandomForestClassifier


datas...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_19]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80626836</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80626836</guid><author>akago9</author><pubDate>Fri, 08 Jun 2018 18:38:10 +0800</pubDate><description><![CDATA[%matplotlib inline

import random

import numpy as np
import scipy as sp
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns

import statsmodels.api as sm
import statsmodels.form...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_18 scipy练习题]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80587505</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80587505</guid><author>akago9</author><pubDate>Tue, 05 Jun 2018 21:25:21 +0800</pubDate><description><![CDATA[Exercise 10.1: Least squares

Generate matrix A 2 Rmn with m &amp;gt; n. Also generate some vector b 2 Rm. 
Now nd x = arg minx kAx �� bk2. 
Print the norm of the residual.

代码展示

import numpy as np
fro...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_17 matplotlib 练习题]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80480807</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80480807</guid><author>akago9</author><pubDate>Mon, 28 May 2018 12:51:40 +0800</pubDate><description><![CDATA[Exercise 11.1: Plotting a function

Plot the function
f(x) = sin^2(x-2)e^-x2
over the interval [0; 2]. Add proper axis labels, a title, etc. 


代码展示：

import matplotlib.pyplot as plt
import numpy as n...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_16 Numpy练习题]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80383280</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80383280</guid><author>akago9</author><pubDate>Sun, 20 May 2018 16:28:12 +0800</pubDate><description><![CDATA[9.1

输出结果：




    A =  [[ 70.40406743   2.02668602  94.54645001 ... 110.30864041 125.31322128
  119.79697459]
 [ 71.64816903  77.49512505 109.55139075 ...  78.44655339 158.64178009
  134.17303738]
 [...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_15 leetcode练习题]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80161228</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80161228</guid><author>akago9</author><pubDate>Wed, 02 May 2018 00:11:56 +0800</pubDate><description><![CDATA[14. Longest Common Prefix

  Write a function to find the longest common prefix string amongst an array
of strings.If there is no common prefix, return an empty string &quot;&quot;.


Example 1: 
Input: [“flowe...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_14 leetcode练习题]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80152409</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80152409</guid><author>akago9</author><pubDate>Mon, 30 Apr 2018 21:41:44 +0800</pubDate><description><![CDATA[152. Maximum Product Subarray


  Given an integer array nums, find the contiguous subarray within an array (containing at least one number) which has the largest product.


Example 1: 
Input: [2,3,-2...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_13 leetcode练习题]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/80149446</link><guid>https://blog.youkuaiyun.com/akago9/article/details/80149446</guid><author>akago9</author><pubDate>Mon, 30 Apr 2018 14:59:50 +0800</pubDate><description><![CDATA[55.Jump Game

Given an array of non-negative integers, you are initially positioned at
the first index of the array.Each element in the array represents your
maximum jump length at that position.Deter...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_11]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79845473</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79845473</guid><author>akago9</author><pubDate>Sat, 07 Apr 2018 21:43:55 +0800</pubDate><description><![CDATA[10-4 访客名单

题目描述：10-4 访客名单 ：编写一个while 循环，提示用户输入其名字。用户输入其名字后，
在屏幕上打印一句问候语，并将一条访问记录添加到文件guest_book.txt中。确保这个文件中
的每条记录都独占一行。


代码展示：



filename = 'guest_book.txt'
with open(filename, 'w') as file:
    wh...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_10]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79828188</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79828188</guid><author>akago9</author><pubDate>Thu, 05 Apr 2018 18:33:10 +0800</pubDate><description><![CDATA[9-3 用户

题目描述：创建一个名为USER的类，其中包含属性first_name和last_name。还有用户简介
通常会存储的其他几个属性。在类USER中定义一个名为describe_user()的方法，它打印用
户信息摘要；在定义一个名为greet_user()的方法，它向用户发出个性化问候。
创建多个表示不同用户的实例，并对每个实例都调用上述两个方法。


代码展示



class U...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_9]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79774853</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79774853</guid><author>akago9</author><pubDate>Sun, 01 Apr 2018 00:08:15 +0800</pubDate><description><![CDATA[8-3  T恤

题目描述：编写一个名为make_shirt()的函数，它接受一个尺码以及要印到T恤上的字样。这个
函数应打印一个句子，概要地说明T恤的尺码和字样。
使用位置实参调用这个函数来制作意=一件T恤；再使用关键字实参来调用这个函数。


代码展示



def make_shirt(size, word):
    print(&quot;The T-shirt's size is &quot; + siz...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_8]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79701182</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79701182</guid><author>akago9</author><pubDate>Mon, 26 Mar 2018 17:30:51 +0800</pubDate><description><![CDATA[7-4 比萨配料

  题目描述：编写一个循环，提示用户输入一系列的比萨配料，并在用户输入'quit'时结束循环。每当
用户输入一种配料后，都打印一条消息，说我们会在比萨中添加这种配料。


INPUT 
potato 
tomato 
fish 
quit 
OUTPUT 
Please input an ingredient 
We will put potato in pizza 
Plea...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_7]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79685396</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79685396</guid><author>akago9</author><pubDate>Sun, 25 Mar 2018 12:06:01 +0800</pubDate><description><![CDATA[6-2 喜欢的数字

  题目描述：使用一个字典来存储一些人喜欢的数字。请想5个人的名字，并将这些名字用作字典中
的键；想出每个人喜欢的一个数字，并将这些数字作为值存储在字典中。打印每个人的名字和喜欢
的数字。


代码展示：



dic = {
    'Cirno': 9,
    'Marisa': 13,
    'Yukari': 8,
    'Reimu' : 1000,
    ...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_6]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79684935</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79684935</guid><author>akago9</author><pubDate>Sun, 25 Mar 2018 11:15:51 +0800</pubDate><description><![CDATA[5-2 条件测试

题目描述：对于下面列出的各种测试，至少编写一个人结果为True或False的测试。
  ·检查两个字符串是否相等。
  ·使用函数lower的测试。
  ·检查两个数字相等、不等、大于、小于、大于等于和小于等于。
  ·使用关键字and和or的测试。
  ·测试特定的值是否包含在列表中。
  ·测试特定的值是否未包含在列表中。


代码展示



# 字符串相等与否
print...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_5]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79589967</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79589967</guid><author>akago9</author><pubDate>Sat, 17 Mar 2018 10:53:12 +0800</pubDate><description><![CDATA[4-3 数到20

题目描述：使用一个for循环打印数字1~20（包含）


代码展示

for number in range(1,21):
    print(number)

INPUT 
null

OUTPUT 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20



4-6 奇数

题目描述：通过...]]></description><category></category></item><item><title><![CDATA[高编技术作业_4]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79565730</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79565730</guid><author>akago9</author><pubDate>Thu, 15 Mar 2018 11:37:56 +0800</pubDate><description><![CDATA[3-4  嘉宾名单

题目描述：请创建一个列表，其中包含至少3个你想邀请的人；然后，使用这个列表打印消息，邀请这些人
与你共进晚餐。


代码展示：



guests = {'Reimu', 'Marisa', 'Alice'}
for guest in guests:
    print(guest + &quot;, you are invited to dinner by Scarlet famli...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_2]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79512366</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79512366</guid><author>akago9</author><pubDate>Sat, 10 Mar 2018 22:35:28 +0800</pubDate><description><![CDATA[本文是笔者对未来拥有坚实的Python编程基础之后的一个可能的展望  在拥有足够的编程能力的情况下，笔者愿意做一个竖版弹幕射击游戏，游戏规则概览如下：游戏共数关卡，关卡中敌机以固定模式从版面上方出现，玩家操纵机体在版面内移动，躲避子弹并向敌机射击。击破敌机将掉落点数，玩家所得分数随拾得点数时所处的高度递增。机体拥有初始固定残机，残机消耗至0则游戏结束；达到一定分数后可以增加残机。玩家拥有固定初始次...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_3]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79512220</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79512220</guid><author>akago9</author><pubDate>Sat, 10 Mar 2018 22:00:48 +0800</pubDate><description><![CDATA[本文是《Python编程从入门到实践》第二章“变量和简单数据类型”的练习解答。



2-1 简单消息

题目描述：将一条消息存储到变量中，再将其打印出来。


代码：



message = &quot;A message&quot;
print(message)



2-2 多条简单消息

题目描述：将一条消息存储到变量中，将其打印出来；再将变量的值修改为一条新消息，并将其打印
出来。


代码：



me...]]></description><category></category></item><item><title><![CDATA[高级编程技术作业_1：浏览https://www.python.org的发现与收获]]></title><link>https://blog.youkuaiyun.com/akago9/article/details/79467292</link><guid>https://blog.youkuaiyun.com/akago9/article/details/79467292</guid><author>akago9</author><pubDate>Wed, 07 Mar 2018 11:20:27 +0800</pubDate><description><![CDATA[python是一门面向对象的解释型语言，其特点有：  ①效率高，利用少量代码可执行大量工作  ②应用层面广泛，web程序、游戏编写、数据可视化等领域python都可涉足。  ③代码简洁，可读性强。初学python，可以通过官网对python进行详尽的了解，本博客旨在汇总python官网上一些有用的信息。1.python拥有有大量标准库，包括字符串处理（正则表达式、Uniode）、网络协议(HTTP...]]></description><category></category></item></channel></rss>