python打印換行符In different programming languages such as C, C++, Java, etc. by default, the printing statements do not end with a newline. 默認情況下,在不同的編程語言(例如C,C ++,Java等)中,打印語句
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