# Filename: pickling.py import cPickle as p #import pickle as p shoplistfile = 'shoplist.data' # the name of the file where we will store the object shoplist = ['apple', 'mango', 'carrot'] # Write to the file f = file(shoplistfile, 'w') p.dump(shoplist, f) # dump the obj...
最基本的方法是使用Python的文件操作,将输出结果写入到一个文档中。我们可以使用内置的open()函数创建一个文件对象,然后使用文件对象的write()方法将输出结果写入文件。下面是一个示例代码:# 打开文件,参数"w"表示写入模式 file = open("output.txt", "w") # 写入数据到文件中 file.write("Hello, World!") ...
output_name=os.path.basename(file_name).split(".")[0]# 获取用户输入文件名字 output_file=output_name+"_"+output_time+".txt"# 输出文件名 before_datas=read_data_file(file_name)format_datas=format_data(before_datas)write_to_file(output_file, format_datas)print("Finished, please check file...
Example: Create or Overwrite to Existing File 代码语言:javascript 复制 >>>f=open('C:\myfile.txt','w')>>>f.write("Hello")# writing to file5>>>f.close()# reading file>>>f=open('C:\myfile.txt','r')>>>f.read()'Hello'>>>f.close() Copy 在上面的例子中,f=open("myfile.txt...
target.write("\n") target.write(line3) target.write("\n")print"And finally, we close it."target.close() 2.其他文件操作——八仙过海,各显神通 文件拷贝 Example: fromsysimportargvfromos.pathimportexists script, from_file, to_file=argvprint"Copying from %s to %s"%(from_file, to_file)...
filewriter.write(my_letters[index_value]+'\t')else: filewriter.write(my_letters[index_value]+'\n') filewriter.close() 结果: a b c d e f g h i j k l m n 2、向"输出一个新的文本文件.txt"追加新内容 #!/usr/bin/env python3#写入文本文件output_file="F://python入门//文件//输出...
(self,output_file):self.output_file=output_filedef__enter__(self):self.writer=csv.writer(open(self.output_file,'w'))returnself.writerdef__exit__(self,exc_type,exc_val,exc_tb):self.writer.writerow([])# 写入空行作为文件尾self.writer.close()# 使用上下文管理器进行文件操作withCSVReader('...
file.readline() file.readline() file.close() output: 'Pycharm 默认:https://pypi.python.org/simple\n' '清华:https://pypi.tuna.tsinghua.edu.cn/simple\n' #直接使用readline()时,只会读取文件的第1行数据,一般readline() 配合for 循环进行使用,实现一行行读取文件中的全部内容 ...
file.close() Output Hello, Welcome to Python Tutorial !! Example 2 – Append a line to a text file using the write() function If you want to append the line to the existing text file, you need to open the file in the append mode first and perform thewrite()operation, as shown belo...
f.write("I am a test file.") f.write("Maybe someday, he will promote me to a real file.") f.write("Man, I long to be a real file") f.write("and hang out with all my new real file friends.") f.close() If you were continuing from the last tutorial, we just rewrote the...