Python 文件读取

Python 文件读取

1.如何写入一个文件？

try:
    file = open(‘test.txt’, ‘w’)
except:
    raise

file.write("%s Exception during filter operation.\n")
file.close()

如果没有test.txt，就自动创建一个test.txt。

2.如何在文件结尾处写入？

try:
    file = open(‘test.txt’, ‘a’)
except:
    raise

file.write("%s Exception during filter operation.\n")
file.close()

如果没有test.txt，就自动创建一个test.txt。