Python读写文件（附完整模块化代码）

时间：2024-03-29 12:24:30

一、前言
Python读写文件的代码有许多形式，虽然十分简单，但是每次使用时都需要查找才能用上。所以鄙人用自己贫乏的Python功力编写了一个读写模块的模板，希望最大化方便有文件读写需求的朋友。

二、Python写文件

  • 首先编写一个写文件函数
def writeData(data,path):
    with open(path, encoding="utf-8", mode="a") as txt:
        txt.writelines(data+'\n')
  • 然后是调用writeData函数，实现每调用一次该函数就向文件写入一行
#this is write data template
#generate data for writing
data = []
a  = 65
for i in range(0,26):
    data.append(chr(a))
    a +=1
#The above function is generating data for writing
text = 'readWriteData.txt'
with open(text,'w') as txt:
    txt.write('')
# write a line each circle
for i in range(0,len(data)):
    writer.writeData(data[i],text)
    print(data[i])

结果：A ——Z
Python读写文件（附完整模块化代码）
三、读文件

  • 写文件函数
def read_line(path,index):
        with open(path,'r') as  txt:
            line = txt.readlines()
            return line[index][0]
  • 然后是调用read_line函数，实现每调用一次该函数就返回文件的一行
#this is write data template
text = 'readWriteData.txt'
for i in range(0,26):
    line = reader.read_line(text,i)
    print(line)

结果：A——Z
Python读写文件（附完整模块化代码）
四、模块化

  • 函数文件 read_writer_API.py 
def writeData(data,path):
    with open(path, encoding="utf-8", mode="a") as txt:
        txt.writelines(data+'\n')


def read_line(path,index):
        with open(path,'r') as  txt:
            line = txt.readlines()
            return line[index][0]
  • 实现写文件 write_user.py 
#this is write data template

import read_writer_API as writer
data = []
a  = 65
for i in range(0,26):
    data.append(chr(a))
    a +=1
 # The above function is generating data for writing
text = 'readWriteData.txt'
with open(text,'w') as txt:
    txt.write('')
# write a line each circle
for i in range(0,len(data)):
    writer.writeData(data[i],text)
    print(data[i])
  • 实现读文件 read_user.py 
#this is write data template
import read_writer_API as reader
text = 'readWriteData.txt'
for i in range(0,26):
    line = reader.read_line(text,i)
    print(line)

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