## wk14_1207_ch08_演算法_排序與搜尋
8.3 搜尋
1. 循序搜尋
2. 二分搜尋
## 【inclass practice】
實作2 :
俊民將中獎號碼建立成串列num=[67,12,9,52,91,3]，
讓妹妹輸入三個號碼，再以循序搜尋方法檢查這三個號碼種有幾個中獎，
並顯示其結果。
```python
#2.追蹤泡沫排序法的過程 <bubble_debuge>
def disp_data(): # 顯示串列的自訂程序
for item in datas:
print(item,end=" ")
print()
# 主程式
datas=[3,5,2,1]
print("排序前：",end=" ")
disp_data() # 顯示排序前串列
n=len(datas)-1 # 串列長度-1
for i in range(0,n):
for j in range(0,n-i):
print("i=%d j=%d" %(i,j))
if (datas[j]>datas[j+1]): # 由大到小排序
print("%d,%d 互換後" %(datas[j],datas[j+1]) ,end="：")
datas[j],datas[j+1]=datas[j+1],datas[j] # 兩數互換
print(datas)
print("排序後：",end=" ")
disp_data() # 顯示排序後串列
```
排序前： 3 5 2 1
i=0 j=0
[3, 5, 2, 1]
i=0 j=1
5,2 互換後：[3, 2, 5, 1]
i=0 j=2
5,1 互換後：[3, 2, 1, 5]
i=1 j=0
3,2 互換後：[2, 3, 1, 5]
i=1 j=1
3,1 互換後：[2, 1, 3, 5]
i=2 j=0
2,1 互換後：[1, 2, 3, 5]
排序後： 1 2 3 5
實作3:
下列名單為本期大樂透的中獎名單name=['David','Lily','Chiou','Bear','Shantel','Chynthia']，
讓使用者輸入一個姓名，輸入的字元大小寫不分，
例如輸入 david、David、DAVID都是同一人，
請以二分搜尋法檢查該名單是否中獎，
並顯示查詢結果。
```python
# 3.中獎者姓名(循序搜尋) <sequential>
num=[256,731,943,389,142,645,829,945]
name=["林小虎","王中森","邵木淼","李大同","陳子孔","鄭美麗","曾溫柔","錢來多"]
no = int(input("請輸入中獎者的編號："))
IsFound=False
for i in range(len(name)): #逐一比對搜尋
if (num[i]==no): #號碼相符
IsFound=True #設旗標為 True
break #結束比對
if (IsFound==True):
print("中獎者的姓名為：",name[i])
else:
print("無此中獎號碼！")
print("共比對 %d次 " %(i+1))
```
請輸入中獎者的編號：829
中獎者的姓名為： 曾溫柔
共比對 7次
```python
#binary
num=[256,731,943,389,142,645,829,945,371,418]
name=["林小虎","王中森","邵木淼","李大同","陳子孔","鄭美麗","曾溫柔","錢來多","賈天良","吳水品"]
n=len(num)-1 # 串列長度-1
IsFound=False
min=0
max=n
c=0 #計算比對次數
for i in range(0,n):
for j in range(0,n-i):
if (num[j]>num[j+1]): # 由小到大排序
num[j],num[j+1]=num[j+1],num[j] # 兩數互換
name[j],name[j+1]=name[j+1],name[j] # 姓名互換
no = int(input("請輸入中獎者的編號："))
while(min<=max):
mid=int((min+max)/2)
c+=1 #比對次數加 1
if (num[mid]==no): #號碼相符
IsFound=True
break
if (num[mid]>no): #如果中間值大於輸入值
max=mid-1 #使用較小的一半區域繼續比對
else: #如果中間值不大於輸入值
min=mid+1 #使用較大的一半區域繼續比對
if (IsFound==True):
print("中獎者的姓名為：",name[mid])
else:
print("無此中獎號碼！")
print("共比對 ", c ," 次")
```
請輸入中獎者的編號：142
中獎者的姓名為： 陳子孔
共比對 3 次
```python
!pip install wikipedia
```
Defaulting to user installation because normal site-packages is not writeable
Collecting wikipedia
Downloading wikipedia-1.4.0.tar.gz (27 kB)
Preparing metadata (setup.py): started
Preparing metadata (setup.py): finished with status 'done'
Requirement already satisfied: beautifulsoup4 in c:\programdata\anaconda3\lib\site-packages (from wikipedia) (4.11.1)
Requirement already satisfied: requests<3.0.0,>=2.0.0 in c:\programdata\anaconda3\lib\site-packages (from wikipedia) (2.28.1)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in c:\programdata\anaconda3\lib\site-packages (from requests<3.0.0,>=2.0.0->wikipedia) (1.26.14)
Requirement already satisfied: certifi>=2017.4.17 in c:\programdata\anaconda3\lib\site-packages (from requests<3.0.0,>=2.0.0->wikipedia) (2023.5.7)
Requirement already satisfied: charset-normalizer<3,>=2 in c:\programdata\anaconda3\lib\site-packages (from requests<3.0.0,>=2.0.0->wikipedia) (2.0.4)
Requirement already satisfied: idna<4,>=2.5 in c:\programdata\anaconda3\lib\site-packages (from requests<3.0.0,>=2.0.0->wikipedia) (3.4)
Requirement already satisfied: soupsieve>1.2 in c:\programdata\anaconda3\lib\site-packages (from beautifulsoup4->wikipedia) (2.3.2.post1)
Building wheels for collected packages: wikipedia
Building wheel for wikipedia (setup.py): started
Building wheel for wikipedia (setup.py): finished with status 'done'
Created wheel for wikipedia: filename=wikipedia-1.4.0-py3-none-any.whl size=11707 sha256=982b581dca073b704dda15d0d1a748a6695a588bb3ebb2af77d4e23764edc19d
Stored in directory: c:\users\user\appdata\local\pip\cache\wheels\b2\7f\26\524faff9145e274da278dc97d63ab0bfde1f791ecf101a9c95
Successfully built wikipedia
Installing collected packages: wikipedia
Successfully installed wikipedia-1.4.0
```python
import wikipedia as wiki
```
```python
#設定語言
wiki.set_lang("zh")
searchtarget = input("請輸入要搜尋的項目: ")
searchResult = wiki.search(searchtarget)
print(f"搜尋結果 => {searchResult}")
```
請輸入要搜尋的項目: 長庚
搜尋結果 => ['長庚', '長庚醫療財團法人', '長庚科技大學', '長庚大學', '林口長庚紀念醫院', '李長庚 (明朝)', '李長庚', '李長庚 (1752年)', '長庚 (清朝同知)', '程长庚']
```python
que= " "
for i in range(len(searchResult)):
que += f"{i} - {searchResult[i]}\n"
index = int(input(f"{que}#請選擇想要的結果: "))
target = searchResult[index]
summary = wiki.summary(target)
print(f"[{target}]摘要 => {summary}")
```
0 - 長庚
1 - 長庚醫療財團法人
2 - 長庚科技大學
3 - 長庚大學
4 - 林口長庚紀念醫院
5 - 李長庚 (明朝)
6 - 李長庚
7 - 李長庚 (1752年)
8 - 長庚 (清朝同知)
9 - 程长庚
#請選擇想要的結果: 3
[長庚大學]摘要 => 長庚大學，是位於臺灣桃園市龜山區的私立大學，前身長庚醫學院，由台塑企業創辦人王永慶於1987年設立。1997年8月由長庚醫學暨工程學院改制長庚大學。
```python
import os
```
```python
page = wiki.page(target)
reportText=" "
title = page.title
#如果檔案不存在，創建一個
if not os.path.isfile(f"./{title}.md"):
with open(f"./{title}.md","w")as f: pass
f = open(f"./{title}.md","w", encoding="utf-8")
reportText += f"#{title}\n"
categories = page.categories
reportText += f"## 分類\n{categories}\n"
reportText += f"## 摘要\n{summary}\n"
url = page.url
reportText += f"## 網址\n{url}\n"
content = page.content
reportText += f"## 內容\n{content}\n"
reportText += f"## 圖片\n"
images = page.images
for img in images:
if not img.endswith(".svg"):
reportText += f"\n"
reportText += f"## 參考連結\n"
references = page.references
for reference in references:
reportText += f"- {reference}\n"
f.write(reportText)
f.close()
```
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