張育慈下拉是選單select option了解chatgpt

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2024年12月9日迴圈程式碼

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張育慈整合開發環境IDE的Jupyter編輯Python程式碼 3月 24, 2025

#張育慈python註解comment使用# '''前後用三個引號可以單引,也可以雙引''' from tkinter import * #從函式庫 tkinter 輸入所有 * 方法 banks=['摩根大通'] def ABC(): #畫圖 define自訂函數 global b1 #宣告b1是廣域GLOBAL變數,其他函數也可使用 txt = '' for i in range(len(banks)): txt += banks[i] + ' ' b1=Label(canvas,text=txt,font='Arial 20 bold') b1.pack(side=TOP) def XYZ(): #清除視窗的all所有canvas圖 banks.append(bank.get()) ABC()#結束XYZ之前給它顯示 def kill(): banks.pop()#移除串列banks元素 ABC()#執行自訂函數(寫在前面) tk = Tk()#建構Tk命令視窗名為tk global bank#宣告網域變數bank variable bank = StringVar(tk)#命令bank視窗tk的變數 global bank#宣告網域變數bank bank=stringVar(tk)#命令bank視窗tk的變數 tk.title("老猴仔python建立tkinter視窗使用者介面") #也可以定義視窗名為 window, root課本都如此習慣 canvas = Canvas(tk, width=400, height=400) canvas.pack() enter=Entry(tk,textvariable=bank)#變數enter視窗tr的輸入工具 btn1 = Button(tk, text="銀行", command = ABC, bg='black',fg='white').pack(side=LEFT) btn2 = Button(tk,...
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