摘要： # eval# s='1+2+3+4'# ret=eval(s)# print(ret)# def fun():# print('666')# return ' >'# eval('fun()')# ret = eval('fun')()# print(ret)# def fun():# print 阅读全文

摘要： # f= open(r'unifo.py',mode='r',encoding='utf-8')# f2 = open(r'b.txt',mode='w',encoding='utf-8')# for i in f:# username,password = i.split('|')# if use 阅读全文

摘要： # 复制视频import ossize = os.path.getsize(r'D:\python文件\day5\day1.mp4')f=open(r'D:\python文件\day5\day1.mp4',mode='rb')f2 = open(r'b.mp4',mode='wb')while si 阅读全文