大约有 30,000 项符合查询结果（耗时：0.0391秒） [XML]
Scoping in Python 'for' loops
...meiterator, start=1):
dosomething(count, x)
print "I did something {0} times".format(count)
Is this necessary? No. But, it sure is convenient.
Another thing to be aware of: in Python 2, variables in list comprehensions are leaked as well:
>>> [x**2 for x in range(10)]
[0, 1, 4, 9, ...
How to create a new object instance from a Type
One may not always know the Type of an object at compile-time, but may need to create an instance of the Type .
12 Ans...
Retrieve database or any other file from the Internal Storage using run-as
...mefile > somefile to extract a single file. But you have to do multiple times for multiple files. Here is a simple script I use to extract the directory.
#!/bin/bash
P=
F=
D=
function usage()
{
echo "$(basename $0) [-f file] [-d directory] -p package"
exit 1
}
while getopts ":p:f:d:" o...
Undefined method 'task' using Rake 0.9.0
...71169
There should be a 3.0.8 release soon that fixes it. In the mean time, you can add the following line to your Gemfile:
gem 'rake', '~> 0.8.7'
It's a problem in Rake (0.9.0), it was announced by DHH on Twitter.
Rake 0.9, which was released yesterday, broke Rails (and others)....
OPTION (RECOMPILE) is Always Faster; Why?
...
There are times that using OPTION(RECOMPILE) makes sense. In my experience the only time this is a viable option is when you are using dynamic SQL. Before you explore whether this makes sense in your situation I would recommend rebui...
Installing Java 7 on Ubuntu
..... so that it could be useful for the rest and they need not have to spend time in searching it...As like I have invested to much time in getting the right steps...don't want others to invest time in such things..
– Abhijit Bashetti
Sep 8 '16 at 10:16
...
How to get all files under a specific directory in MATLAB?
...quite old, and I've modified this utility a lot for my own use during that time, I thought I should post a new version. My newest code can be found on The MathWorks File Exchange: dirPlus.m. You can also get the source from GitHub.
I made a number of improvements. It now gives you options to prepen...
Is it possible to download an old APK for my app from Google Play?
...improved, being this issue you mention one of them. Unfortunately for the time being you're out of luck. Unless Google enables this, you cannot download old APKS's. I suppose you could recompile the old code, but I guess you don't have that either and that's why you are here :-)
...
Change the maximum upload file size
...e your php.ini, you're out of luck. You cannot change these values at run-time; uploads of file larger than the value specified in php.ini will have failed by the time execution reaches your call to ini_set.
See the Description of core php.ini directives.
...
Eclipse “Error: Could not find or load main class”
...-> Run Configurations) and remove all references to the class. The next time you run
"Run As" -> "Java Application"
Eclipse will write a new configuration for the moved class, and the error will go away.
share
...