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name os is not defined
pycharm运行时显示
name
文本
isnotdefined
视频时间 1:80
...path.exists(f
name
):
Name
Error: name 'fname'
is
not
defined
...
答:
import
os
ls = os.linesep #为os.linesep取了一个别名 当前平台的换行符 while True:fname = raw_input('input a file name to save file
names
:%s' % ls)if os.path.exists(fname):#os.path.exists(path)判断path是否存在 print ('error: %s already exsit', fname)else:print 'save...
pychrm中python
name
'_file_'
is
not
defined
?
答:
_file_你需要给它加个双引号或者单引号,不加那它就是一个变量,但是你上面又没有叫_file_的变量,所以会报错,
怎么解决
name
Tkinter'
is
not
defined
问题
答:
from tkinter import * #第一步 第二步,创建一个顶层窗口对象,来容纳整个GUI程序 在您的顶层窗口的对象上创建所有的GUI模块 把这些GUI模块与底层程序代码想连接 import
os
, getpass, time import tkinter as tk root = tk.Tk()top=Tkinter.Tk()#创建一个顶层窗口对象 label=tk.Label(root,te...
...脚本insert.sh,报错 global
name
'insert'
is
not
defined
...
答:
os
.system('insert.sh')参数用引号引起来。
求~与IE相关的英语文章(有翻译的更好)
答:
, Internet Explorer did
not
become included as the default browser for Microsoft Windows until the release of Windows 95
OS
R1 in 1996. The last major upgrade to Internet Explorer, 6.0 SV1[1],
is
included in Windows XP Service Pack 2 and Windows Server 2003 Service Pack 1 only. Version 7...
什么是MAC地址
答:
* SCSI and Fibre Channel (as part of a World Wide
Name
) The distinction between EUI-48 and MAC-48 identifiers
is
purely semantic: MAC-48 is used for network hardware; EUI-48 is used to identify other sorts of devices and software. (Thus, by definition, an EUI-48 is
not
in fact a...
请教unix服务器上ntpd服务的一个参数问题
答:
associations. This
is
almost never a good idea. This option must
not
appear with the authreq option.-b, --bcastsync Enable the client to sync to broadcast servers.Sun
OS
5.10 Last change: 5 System Administration Commands ntpd(1M)-c string, --configfile=string The...
进程管理
os
编程
答:
If the file
name
ends in a period (.) with no extension, or if the filename contains a path, .EXE
is
not
appended. psaProcess [in]
Not
supported; set to NULL. psaThread [in] Not supported; set to NULL. fInheritHandles [in] Not supported; set to FALSE. fdwCreate [in] Specifies ...
CAD的快捷键全部不能用了。 急,请高手支招,急着用!
答:
; 4. Once an alias
is
defined
, add suffixes for related aliases:; Examples: R for Redraw, RA for Redrawall, L for Line, LT for Linetype.; 5. An alias should reduce a command by at least two characters.; 6. Commands with a control key equivalent, status bar button, ...
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