更改目录加
截屏
如何使用
Move selection up = w
Move selection down = s
Move into selected directory/file = a
Move out of current directory = d
(like in vim you can use hjkl keys to move)
Enter directory = e
Quit terminal = escape
exit cdp = q
Search file by ful
Python上下文管理器
简介
最近用到这个,仔细了解了一下,感觉是十分有用的,记录一下
使用场景
当我们需要获取一个临时打开的资源,并在使用完毕后进行资源释放和异常处理,利用try-catch语句可以完成,举个例子。
打开文件:
f = None
try:
print(try)
f = open(__init__.py, r)
print(f.read())
except Exception as e:
print(exception)
finally:
if f:
p