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Linux环境离线安装docker&docker-compose - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
.../daemon.json
# 在文件中添加一下内容：
{
"data-root": "/data/app/dockerWork",
"insecure-registries": ["ss.suwell.com"],
"registry-mirrors": ["https://geuj9lut.mirror.aliyuncs.com"]
}
备注：可能会存在直接复制粘贴后的json文件不可用的情况...
How do you sign a Certificate Signing Request with your Certification Authority?
...ester might be able to trick you into signing something like a subordinate root (rather than a server or user certificate). Which means he/she will be able to mint certificates that chain back to your trusted root. Be sure to verify the request with openssl req -verify before signing.
If you omit...
Debug vs Release in CMake
...ommended to do an "out of source" build. Create your CMakeLists.txt in the root of your project. Then from the root of your project:
mkdir Release
cd Release
cmake -DCMAKE_BUILD_TYPE=Release ..
make
And for Debug (again from the root of your project):
mkdir Debug
cd Debug
cmake -DCMAKE_BUILD_TYP...
总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...int类型在内存中所占字节数）。为了知道static_cast<> 实际如何，我们不得不要来看一下CDerived的内存布局。
CDerived的内存布局（Memory Layout）
如图所示，CDerived的内存布局包括两个对象，CBaseX 和 CBaseY，编译器也知道这一点...
CodeIgniter removing index.php from url
...
i had to put the .htaccess in the root folder instead of "application" folder to make this work
– Mawardy
Apr 6 '17 at 16:13
...
How to get RelativeLayout working with merge and include?
... that id, visibility and layout_* tags overriding are not applied when the root element is a merge tag, unfortunately. As you can't have a View as the xml root, we must have an extra ViewGroup there...
– Rafael Nobre
Jul 24 '13 at 13:20
...
Import module from subfolder
...re.
To properly use absolute imports in a package you should include the "root" packagename as well, e.g.:
from dirFoo.dirFoo1.foo1 import Foo1
from dirFoo.dirFoo2.foo2 import Foo2
Or you can use relative imports:
from .dirfoo1.foo1 import Foo1
from .dirfoo2.foo2 import Foo2
...
Update Git submodule to latest commit on origin
... branch
git checkout master
# Update
git pull
# Get back to your project root
cd ..
# Now the submodules are in the state you want, so
git commit -am "Pulled down update to submodule_dir"
Or, if you're a busy person:
git submodule foreach git pull origin master
...
How do I use valgrind to find memory leaks?
...r* string = "{ \"key\": \"value\" }";
json_error_t error;
json_t* root = json_loads(string, 0, &error); //obtaining a pointer
json_t* value = json_object_get(root, "key"); //obtaining a pointer
printf("\"%s\" is the value field.\n", json_string_value(value)); //use value
js...
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...的服务和特征，而无需知道确切的 UUID 或有关服务和特征如何工作的详细信息。 所选择的服务和特征使得能够读取或写入特征数据值。 例如，通过电池电量服务和特性，可以监控所连接设备的电池电量。 由于 GATT 服务和特性的...