Python 文件篇

Python文件读取、写入。

关键字with在不访问文件后将自动关闭。

读取文件

"""
读取文件
"""

# 带有空行
with open("test.txt", encoding = "UTF-8") as file_obj:
    for line in file_obj:
        print(line)

# 去除空行
with open("test.txt", encoding = "UTF-8") as file_obj:
    for line in file_obj:
        print(line.rstrip())

# 创建列表
with open("test.txt", encoding = "UTF-8") as file_obj:
    for line in file_obj:
        lines = file_obj.readlines()

for line in lines:
    print(line.rstrip())

写入文件

# 写入文件
# 文件不存在自动创建
# r读模式、w写模式、a附加模式、r+读写模式
with open("write.txt", 'a', encoding = "UTF-8") as file_obj:
    file_obj.write("111 \n")
    file_obj.write("222 \n")