7天学习—day4—Python的文件读写操作

[YU. AN]

1.open函数的使用

2.读取方式

 

ps:读取txt格式的文件，要注意补充 

encoding = 'utf-8'

不然会报错。

4.其他练习

# 使用 with 运算符
with open("test.txt") as file_handler:
    for line in file_handler:
        print(line)

# 捕捉异常
try:
    file_handler = open("test.txt")
    for line in file_handler:
        print(line)
except IOError:
    print("An IOError has occurred!")
finally:
    file_handler.close()

# 使用with来做同样的事情
try:
    with open("test.txt") as file_handler:
        for line in file_handler:
            print(line)
except IOError:
    print("An IOError has occurred!")