powerpoint預設檔名「媒體1.mp4」與「簡報1.mp4」比較 



































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  1. George2025年6月29日 下午5:01
    https://erichtml-css-javascript-java.blogspot.com/2025/06/60.html
    Table. https://erichtml-css-javascript-java.blogspot.com/2025/05/youtube-video-player.html
    https://erichtml-css-javascript-java.blogspot.com/2025/05/powerpoint1mp41mp4.html
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  2. George2025年6月29日 下午5:06
    沒看到你的影片！
    回覆刪除











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蔡耀葳期末考馬可維茲風險平均數平面




















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6/20程式碼   import csv                      #輸入csv套件comma separated value f = open('200201to202505.csv','r', encoding="utf-8")#打開下載的檔案SPY.CSV,模式是r讀取, csvreader = csv.reader(f)           #將檔案讀入變數csvreader header, rows = list(), list()       #宣告空白串列(陣列,清單) firms = set()                       #建構集合 header = next(csvreader)            #串列header儲存檔案第一列 for record in csvreader:            #檔案紀錄，逐列row檢視    rows.append(record)              #第i筆附加append於rows串列成為rows[i]    firms.add(record[0])             #row[0]公司名稱 f.close()                           #關閉檔案  months = dict() for year in range(2007,2026):    months[year]=[str(year*100+month) for month in range(1,13)] count, sum, sumSq, mean, stdev = dict(), dict(), dict(), dict(), dict() for firm in firms:     for year in range(2007, 2026):         t = (firm, year) #元組(公司,年)         count[t] = 0         sum[t] = 0.0         sumSq[t] = 0.0 for row in rows:            #字典value增加append元素     for firm in firms:         if row[...








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蔡耀葳期末考60分部分一定要給老師親眼看過




















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       關鍵程式碼   def draw():#按下按鈕button1執行draw     canvas.create_line(0,500,700,500,width=3,fill='black',arrow='last')     canvas.create_line(10,600,10,5,width=3,fill='black',arrow='last')     for firm in firms:         t=(firm, year.get())         x = 10+20*stdev[t]*2*3**0.5 #放大20         y = 500 - 10*mean[t]*12     #放大10         dot=canvas.create_oval(x-5,y-5,x+5,y+5,fill='blue')         lab=canvas.create_text(x+10,y,text=firm[4:7],anchor=W,font=('微軟中黑體', 16)) def delete():#按下按鈕button2執行delete     canvas.delete('all') years=[x for x in range(2007, 2025)] year=IntVar(tk) year.set(years[0]) label = Label(tk, text="年度",font=('Arial',30,'bold'),).pack(side=LEFT)  #距離左側 option1 = OptionMenu(tk, year, *years).pack(side=LEFT) button1 = Button(tk, text="賴青德繪圖 ",font=('Arial',30,'bold'), command = draw, bg='black',fg='white').pack(side=LEFT) button2 = Button(tk, text=...








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      Python 函數def 函數名稱: def draw(): canvas繪圖套件 create_line(x起點,y起點,x終點,y終點) def draw第二個delete   def draw():#按下按鈕button1執行draw canvas.create_line(0,500,700,500,width=3,fill='black',arrow='last')     canvas.create_line(10,600,10,5,width=3,fill='black',arrow='last')     for firm in firms:         t=(firm, year.get())         x = 10+20*stdev[t]*2*3**0.5 #放大20         y = 500 - 10*mean[t]*12     #放大10         dot=canvas.create_oval(x-5,y-5,x+5,y+5,fill='blue')         lab=canvas.create_text(x+10,y,text=firm[4:7],anchor=W,font=('微軟中黑體', 16)) def delete():#按下按鈕button2執行delete     canvas.delete('all') years=[x for x in range(2007, 2025)] year=IntVar(tk) year.set(years[0]) label = Label(tk, text="年度",font=('Arial',30,'bold'),).pack(side=LEFT)  #距離左側 option1 = OptionMenu(tk, year, *years).pack(side=LEFT) button1 = Button(tk, text="賴青德繪圖 ",font=('Arial',30,'bold'), command = draw, bg='...








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