animal = ["豬", "牛", "羊", '貓', "蛇"]
#python語言的註解comments,以下命令出現
print(animal[2])
print(animal[-5])
for i in range(5):#其他語言{}代表一個區
x = '我愛' + animal[i]
print(x) #使用index
print('上面使用index, 下面沒用')
for i in animal:
print(i)
x = animal.copy()
print(animal)
x.reverse() #將x反轉reverse
print(x)
animal.append('狗')
print(animal)
y = animal.copy()
y.reverse() #將x反轉reverse
print(y)
這個網誌中的熱門文章
from tkinter import * #或者import tkinter as tk import math tk = Tk() #建構視窗名為tk tk.geometry('1200x400')#視窗 寬1200像素 tk.title("劉任昌python tkinter三角函數") canvas = Canvas(tk, width=1200, height=400, bg='black') canvas.grid(row=0,column=0,padx=5,pady=5,columnspan=3) delay=10 # 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='red',width=10) L2=canvas.create_line(x1,z1,x2,z2,fill='yellow',width=10) if (x2
507.https://jjjjiaying.blogspot.com/2025/05/from-tkinter-import-import-tkinter-as.html
回覆刪除305.有應付就是有來上課!很好。https://jjjjiaying.blogspot.com/2025/03/animal-pythoncomments-printanimal2.html
226.https://jjjjiaying.blogspot.com/2025/02/blog-post.html
https://jjjjiaying.blogspot.com/2025/02/css-body-font-family-arial-sans-serif.html