python 文件相关操作

filename = 'pi_digits.txt' with open(filename) as a: lines = a.readlines() print(lines) # 在外面也可以用lines变量 for line in lines: print(line.rstrip()) for line in lines: print(line) filename = 'programming.txt' # 'w' 模式会清空已经存在的文件 with open(f...