第一节
1 介绍了Python的文件操作函数open()
2 比如f = open("out.txt" , "w")是表示打开可写的方式打开out.txt
3 任何打开的文件都要进行close,比如f.close()
第二节
1 介绍了我们以"w"方式打开文件的write()函数
2 比如f = open("out.txt" , "w")是表示打开可写的方式打开out.txt,然后我们f.write("haha")是把"haha"字符串写入到out.txt中
3 练习:把my_list中的每一项都写到文件output.txt中,并且在每一项后面加上"\n"
my_list = [i**2 for i in range(1,11)]
my_file = open("output.txt", "r+")
# Add your code below!
for num in my_list:
my_file.write(str(num)+"\n")
my_file.close()
第三节
1 介绍了我们以"r"方式打开文件的read()函数
2 练习:以"r"方式打开output.txt,利用read()函数输出这些值
my_file = open("output.txt" , "r")
print my_file.read()
my_file.close()
第四节
1 介绍了readline()函数用来读入一行
2 练习:以"r"方式打开text.txt文件,然后输出三行读入的readline
# text.txt
I'm the first line of the file!
I'm the second line.
Third line here, boss.
# code
my_file = open("text.txt" , "r")
print my_file.readline()
print my_file.readline()
print my_file.readline()
my_file.close()
第五节
1 介绍了with...as...结构的使用
2with open("file","mode") as variable:
# Read or write to the file
分享到:
相关推荐
--predict_file ~/chinese-qa-with-bert/input.json \ --state_dict ~/chinese-qa-with-bert/output/pytorch_model.bin \ --model_name_or_path bert-base-chinese ``` 【备注】 该项目是个人毕设/课设/大作业...
Next, the chapter discusses how to use three different types of conditional logic to filter for specific rows from the input file and write them to a CSV output file. Then the chapter presents two ...
python caj2pdf convert [input_file] -o/ --output [output_file] “”“python 工程需要配置PyPDF2”“”
-f FILE, --file=FILE input file -m [normal|verify|frequency], --mode=[normal|verify|frequency] select mode,default=normal -c CSV, --csv=CSV set input file as csv format -o FILE, --output=FILE ...
usage: pymacro [-h] [-m MACROS_FILE] [-i INPUT] [-o OUTPUT] optional arguments: -h, --help show this help message and exit -m MACROS_FILE, --macros-file MACROS_FILE File where macros are stored ...
python lixian_cli.py download --input download-urls-file --output-dir root-dir-to-save-files python lixian_cli.py download bt://torrent-info-hash python lixian_cli.py download 1.torrent ...
Computer graphics, Games, Testing, File Input/Output, Database Access, Logging, Concurrency and Parallelism and Network Programming. 4. Each topic in the book has an introductory chapter followed by ...
-i [input file] input file (Default: stdin) -o [output file] output file (Default: stdout) -s <format> input file format (Default: Auto-Detection) -sb input file format is Binary -sp <paras> the ...
python3 pngdataencoder.py --encode images/thor.png --input-file secret.jpeg --output-path images/thorsecret.png python3 pngdataencoder.py --decode images/thorsecret.png --output-path reveal.jpeg 您还...
警告:Upverter 正在将我们的 UPV 格式大修为新版本。 我们不希望维护当前版本,但我们期待在新版本准备就绪时与您分享!... python2 -m upconvert.upconverter [-h] [-i INPUT] [-f TYPE] [-o OUTPUT] [-s SYMDI
需求:根据country列的不同值,将内容分到不同sheet 方法一: 读取原Excel,根据country列将不同的内容放到...output_file = F://python入门//数据2//output.xlsx data_frame = pd.read_excel(input_file,sheet_name=
Search for PATTERN in each FILE or standard input and output a paragraph separated by separator. Example: python pgrep.py -i 'hello world' menu.h main.c OPTIONS: -c, --count Suppress normal output; ...
解析器 APDU解析器使您可以将APDU... -o OUTPUT_FILE, --output=OUTPUT_FILE specify output file -c, --commands specify if input file contains only APDU commands -r, --responses specify if input file con
7. Input and Output 70 7.1. Fancier Output Formatting 70 7.1.1. Old string formatting 75 7.2. Reading and Writing Files 76 7.2.1. Methods of File Objects 77 7.2.2. Saving structured data with json 79 ...
从elf文件的DWARF信息中更新A2L文件中地址的Python脚本-汽车-XCP 示例:a2lUpdater.py elf-file.elf input.a2l output.a2l 妙处:支持结构元素(这就是使用DWARF-Info的原因) 当前此脚本需要gnu objdump.exe-因此...
-p PATH, --path=PATH input web directory filepath -o OUTPUT, --output=OUTPUT create a html report -e php|asp|aspx|jsp|all, --ext=php|asp|aspx|jsp|all define what's file format to scan ## 示例 ...
#要求的Python 3 dnspython库#用法: $> python axfr-test.pyusage: axfr-test.py [-h] [-i [INPUTFILE]] [-o [OUTPUTFILE]] [-l [LOGFILE]] [-p [PROCESSES]] [-d [DOMAIN]]Check domains' nameservers for ...
使用实体信息丰富用于关系分类的预训练语言模型 概述 R-BERT (非官方)R-BERT的Pytorch实现:Enriching Pre-trained ...$ python3 predict.py --input_file {INPUT_FILE_PATH} --output_file {OUTPUT_FILE_PATH} --
# python3 -m venv env # env/bin/pip install -r requirements.txt ... # env/bin/python enex2html.py -h usage: enex2html.py [-h] -i INPUT [-o OUTPUT] [-p PASSWORD] ... Input File -o OUTPUT, --output
UNet:使用PyTorch进行语义分割 使用Cityscapes和Kitti数据集 用法 注意:使用Python 3.6或更高版本 ...usage: predict.py [-h] [--model FILE] --input INPUT [INPUT ...] [--output INPUT [INPUT