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Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...用Tag Manager之前，我们先看看没有这个工具之前，我们是如何管理Tag脚本的。
Step 1：
按照Google Analytics的配置要求，我们把如下的脚本放到网站全局的页脚，如：footer.inc：
<script type=”text/javascript”>
var _gaq = _gaq || [];
_gaq....
Node.js EACCES error when listening on most ports
...
Running on your workstation
As a general rule, processes running without root privileges cannot bind to ports below 1024.
So try a higher port, or run with elevated privileges via sudo. You can downgrade privileges after you have bound to the low port using process.setgid and process.setuid.
Ru...
Capture Video of Android's Screen
...s, is it posible to capture a video of the running application in android?
Rooted or non-rooted, I don't care, I want atleast 15fps.
...
test a file upload using rspec - rails
...e_file_upload method to test file uploading:
Put your test file in "{Rails.root}/spec/fixtures/files" directory
before :each do
@file = fixture_file_upload('files/test_lic.xml', 'text/xml')
end
it "can upload a license" do
post :uploadLicense, :upload => @file
response.should be_success
e...
浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术
...变为1 1000 0000 这样才能转化为
-128输出，不然1000 0000 如何输出？这当然是我的一种推断，具体怎么实现还得问CPU的设计者了。。。。
再看一个例子：
char a=-129;
printf("%d",a) ; 会输入多少？？ 结果为127 ，为...
Why is SELECT * considered harmful?
...tage of using * is that in some situations it can take better advantage of MySQL's cache systems. If you're running large numbers of similar select queries that request different column names (select A where X,select B where X,...) using a select * where X will allow the cache to handle a larger num...
Where can I find the Java SDK in Linux after installing it?
... "find / -name 'javac'" is less typing, but requires admin (root) privilege or you will get a lot permission denied messages.
– Steven the Easily Amused
Sep 30 '16 at 22:54
...
How to force an entire layout View refresh?
...EditText should be visible then in ScrollView, but I was unable to refresh root view to take effect.
I solved my problem, when I need to refresh the view so I changed the ScrollView visibility to GONE and then again set it to VISIBLE to take effect and it worked for me. This is not the exact soluti...
Using logging in multiple modules
...logging.config.fileConfig('logging.conf')' stmt. this stmt is actually the root cause of my concern. you see, if i have initiate the logger in every module, i would have to type this stmt in every module. that would mean tracking the path of conf file in every module, which does not look like a best...
Solution to INSTALL_FAILED_INSUFFICIENT_STORAGE error on Android [closed]
... @Msmit1993, you don't have access to the data directory on a non-rooted device. Having SDK and ADB does not matter.
– Stan
Jun 5 '14 at 18:14
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