林金純 殖利率
Macaulay Duration=-(Delta P)/(Delta y)*(1+y)/P
Modified Duration=-(Delta P)/(Delta y)/P
林金純python類別class函數def
影片445 wikipedia智能合約 bro code snake game程式碼 from tkinter import * import random GAME_WIDTH,GAME_HEIGHT = 600 , 600 SPEED = 200 #時間單位千分之一 SPACE_SIZE, BODY_PARTS = 50 , 3 #左邊變數 assigning value一次改全部 ctrl shift L COLOR = [ "red" , "orange" , "yellow" , "green" , "blue" , "indigo" , "purple" , "pink" ] #0123456 FOOD_COLOR = "white" BACKGROUND_COLOR = "black" class Snake : #類別Snake def __init__ ( self ): self .body_size = BODY_PARTS self .coordinates = [] self .squares = [] for i in range ( 0 , BODY_PARTS): self .coordinates.append([ 0 , 0 ]) for x, y in self .coordinates: i = random.randint( 0 , 6 ) #產生整數亂數0到6 square = canvas.create_rectangle(x, y, x + SPACE_SIZE, y + SPACE...
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