Python - file I/O

file_io.py

#!/usr/bin/python
# Filename: file_io.py

poem = '''\
Programming is fun
When the work is done
if you wanna make your work also fun:
    use Python!
'''

with open('poem.txt', 'w', encoding="utf-8") as f:  # 写模式打开
    f.write(poem) # 写文件

with open('poem.txt', encoding="utf-8") as f: # 如果没有提供打开模式, 则默认假设为读模式
    while True:
        line = f.readline()
        if not line:
            break
        print(line, end='')