Shulou(Shulou.com)05/31 Report--

Most people do not understand the knowledge points of this article "python how to read txt data", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how python reads txt data" article.

1. Operation steps

(1) Open the file and read the whole file

The function open returns an object representing the file, which is stored in infile. The keyword with automatically closes the file when it is not needed to access it. The read content is saved as a string in data1/data2.

(2) the first one: read all lines infile.readlines ()

(3) the second type: read the for loop line.strip ("\ n") separately on each line. Split ()

(4) third: read for loop-for loop separately for each character.

(5) when reading a text file, python interprets all the text in it as the string str. If you are reading a number and want to use it as a numeric value, you must use the function int () to convert it to an integer. Or use float () to convert it to a floating point number.

2. Code implementation def read_txt (inputpath, outputpath): with open (outputpath, 'outputpath, encoding='utf-8') as file: with open (inputpath,' ringing, encoding='utf-8') as infile: # first: read all lines # data1 = infile.readlines () # print (data1) # output: ['1 2 3 45\ n' '6 7 8 9 10'] # second: read each line separately data2 = [] for line in infile: data_line = line.strip ("\ n"). Split () # remove the newline character And divided by spaces print (data_line) data2.append ([int (I) for i in data_line]) print (data2) # output: [[1,2,3,4,5], [6,7,8,9] 10]] # third: read each character separately data = data2 for i in range (len (data2)): for j in range (len (Data2 [I])): data [I] [j] = str (data2 [I] [j]) print (data) # output: [['1','2' '313,' 4, 5'], ['6','7','8,'9' '10']] # Writing method for line in data2: # data =' +'\ t'.join (str (I) for i in line) +'\ n' # separate data ='+ 'with\ t. Join (str (I) for i in line) +'\ n' # separate with spaces File.write (data) if _ _ name__ = = "_ _ main__": input_path = '1.txt' output_path =' 2.txt' read_txt (input_path Output_path)

If there is a mistake,

If you change the absolute path, you can notice that the symbol is /

Path problem

'' is a relative call (looking for a file name in the current directory)

"" is an absolute call, to write an absolute path

Function description

The spilt () function actually reads what is read according to that as the next split signal.

Strip () is used to remove the characters needed at the beginning and the end.

Data processing.

For example, it's in txt.

You can directly open it with notepad and replace it with spaces.

Then use .spilt.

The above is about the content of this article on "how python reads txt data". I believe we all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.