classFileWriter:def__init__(self,data_list):self.data_list=data_listdefwrite_to_file(self,file_name):try:withopen(file_name,'w',encoding='utf-8')asfile:data_string=','.join(self.data_list)file.write(data_string)
25 printers = win32print.EnumPrinters(win32print.PRINTER_ENUM_LOCAL | win32print.PRINTER_ENUM_CONNECTIONS) 26 printer_list = [] 27 for printer in printers: 28 printer_name = printer[2] 29 printer_list.append(printer_name) 30 return printer_list 31 32 class Application(Frame): 33 def __...
这样就实现了将邮件发给多个人,这多个收件人,都在收件人列表中smtp.sendmail('from@qq.com',['to1@qq.com','to2@qq.com'],msg.as_string())smtp.quit() 3、抄送邮件 用msg['Cc']来装抄送列表。注意sendmail的第2个参数,这个参数是一个所有收件人的 list(列表),收件人和抄送人都在一个list里面。如果想...
print(reduce(lambda x,y : x+y,[1,2,3,4])) 执行结果: /home/kiosk/PycharmProjects/westos5/venv/bin/python /home/kiosk/PycharmProjects/westos5/匿名函数.py 10 Process finished with exit code 0 示例2: print(list(map(lambda x : x**2,[1,2,3,4,5]))) 执行结果: /home/kiosk/Pych...
This function is used to write a list of strings to a file. It doesn’t automatically add line breaks, so they need to be included in the list of elements if needed.Let’s dive into an example of how to use writelines() to write multiple lines into a file:...
Python读取txt文件,用openpyxl模块写入到excel import openpyxl contents=[] def read_txt(): file_txt=open(r’D:\pycharm\APP\3.txt’,‘r’,encoding=‘utf-8’)#打开txt文件 for i in file_txt os模块 ;data1.txt’) 运行: 判断文件或目录是否存在 代码: print(os.pat...
python 中的 print 函数与 list函数 print() 函数: 传入单个参数时默认回车换行,关键词end可以用来避免输出后的回车(换行), 或者以一个不同的字符串结束输出。 1 2 3 4 5 6 >>> a, b=0,1 >>>whileb <1000: ...print(b, end=',')
write_filename_object.write(sortedWord.title() +'\n')#每写入一个单词就换行# print(f"The total word matches is: {len(listOfWordMatch)}.")else:# print(f"The word \'{word.upper()}\' you just entered does not appear in the file, Check please!")passprint(f"the total number of wo...
with open("poems.txt",'rt',encoding='UTF-8') as file: ls1=list(file) print("ls1:",ls1,sep='\n') #output: ls1: ['\ufeff北风卷地百草折,胡天八月即飞雪。\n', '忽如一夜春风来,千树万树梨花开。\n', '散入珠帘湿罗幕,狐裘不暖锦衾薄。\n', '将军角弓不得控,都护铁衣冷难着。']...
>>> ls3=[1,1.0,print(1),True,['list',1],(1,2),{1,4},{'one':1}] 1 >>> ls3.insert(1,"俺插入值在此!") >>> print(ls3) [1, '俺插入值在此!', 1.0, None, True, ['list', 1], (1, 2), {1, 4}, {'one': 1}] 2、在列表末尾添加元素 ls.append(x):将元素x添加...