劉任昌python輸入tkinter和math函式庫

from tkinter import * #或者import tkinter as tk
import math #輸入數學函式庫
tk = Tk()           #建構視窗名為tk
tk.geometry('1200x400')#視窗 寬1200像素
tk.title("林俊傑python tkinter輸入數學函式庫")
canvas = Canvas(tk, width=1200, height=400, bg='black')
canvas.grid(row=0,column=0,padx=5,pady=5,columnspan=3)
delay=5 # milliseconds, 1/1000秒
x1,y1,z1=0,200,10#python特徵,多變數=對等值
h=190      #上下範圍,相當於數學1到-1
def LH():
    global x1, y1, z1#global全球,local當地
    x2 = x1 + 1 #換到下個+1 
    y2=200 - h*math.sin(0.02*x2)
    z2=200 - h*math.cos(0.02*x2) 
    L1=canvas.create_line(x1,y1,x2,y2,fill='white',width=50)
    L2=canvas.create_line(x1,z1,x2,z2,fill='yellow',width=50)   
    if (x2 < 1200): #沒有超過, 記得將 "小於" 改成運算
        x1,y1,z1=x2,y2,z2#下一個起點是現在終點
        canvas.after(delay,LH)#每隔delay執行
    else:
        return    
LH()            #執行LauHou老猴
tk.mainloop()

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