python自我復制的程序python 淺拷貝、In this lesson, we will study about the usage of Python self. It is often a point of debate among experts and a topic of confusion for beginners. Let’s try to come clean for everyone. 在本課程中，我們將研究Python
1.生成200個指定長度的隨機碼
python小程序。import random
import string
def rand_str(num,len=7):
f = open('file.txt','w')
count = 1
for i in range(num):
restr = ''
chars = string.ascii_lowercase+ string.digits
