大约有 44,000 项符合查询结果（耗时：0.0622秒） [XML]
Origin is not allowed by Access-Control-Allow-Origin
...s if you have control of the responding server is to add a response header for:
Access-Control-Allow-Origin: *
This will allow cross-domain Ajax. In PHP, you'll want to modify the response like so:
<?php header('Access-Control-Allow-Origin: *'); ?>
You can just put the Header set Access-...
What is the syntax for a default constructor for a generic class?
Is it forbidden in C# to implement a default constructor for a generic class?
3 Answers
...
Xcode without Storyboard and ARC
...alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
TestViewController *test = [[TestViewController alloc] initWithNibName:@"TestViewController" bundle:nil];
UINavigationController *nav = [[UINavigationController alloc] in...
What is for Python what 'explode' is for PHP?
...
The alternative for explode in php is split.
The first parameter is the delimiter, the second parameter the maximum number splits. The parts are returned without the delimiter present (except possibly the last part). When the delimiter is N...
Choosing a file in Python with simple Dialog
...w about using tkinter?
from Tkinter import Tk # from tkinter import Tk for Python 3.x
from tkinter.filedialog import askopenfilename
Tk().withdraw() # we don't want a full GUI, so keep the root window from appearing
filename = askopenfilename() # show an "Open" dialog box and return the path to...
How do I get Gridview to render THEAD?
...has been data bound, so make sure to wait until databinding has occurred before running the above line of code.
– bdukes
Jul 17 '09 at 14:47
6
...
How to enable MySQL Query Log?
...
First, Remember that this logfile can grow very large on a busy server.
For mysql < 5.1.29:
To enable the query log, put this in /etc/my.cnf in the [mysqld] section
log = /path/to/query.log #works for mysql < 5.1.29
Also, to enable it from MySQL console
SET general_log = 1;
See ht...
Git says “Warning: Permanently added to the list of known hosts”
...sue, rather than just hiding the log message.
This problem was bugging me for quite some time. The problem occurs because the OpenSSH client compiled for Windows doesn't check the known_hosts file in ~/.ssh/known_hosts
ssh -vvvvvvvvvvvvvvvvvvv git@github.com
debug3: check_host_in_hostfile: filen...
Python list directory, subdirectory, and files
...
Use os.path.join to concatenate the directory and file name:
for path, subdirs, files in os.walk(root):
for name in files:
print os.path.join(path, name)
Note the usage of path and not root in the concatenation, since using root would be incorrect.
In Python 3.4, the path...
NodeJS / Express: what is “app.use”?
In the docs for the NodeJS express module , the example code has app.use(...) .
23 Answers
...