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How to implement a ConfigurationSection with a ConfigurationElementCollection
...ypeof(CustomApplicationConfigSection));
public const string SECTION_NAME = "CustomApplicationConfig";
[ConfigurationProperty("Credentials")]
public CredentialsConfigElement Credentials
{
get
{
return base["Credentials"] as Cred...
Convert UTC datetime string to local datetime
...e import datetime
from dateutil import tz
# METHOD 1: Hardcode zones:
from_zone = tz.gettz('UTC')
to_zone = tz.gettz('America/New_York')
# METHOD 2: Auto-detect zones:
from_zone = tz.tzutc()
to_zone = tz.tzlocal()
# utc = datetime.utcnow()
utc = datetime.strptime('2011-01-21 02:37:21', '%Y-%m-%d ...
How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw
...ovementioned methods and not in a different bean method invoked by a later HTTP request. This is because the uploaded file contents is request scoped and thus unavailable in a later/different HTTP request. Any attempt to read it in a later request will most likely end up with java.io.FileNotFoundExc...
how to check the jdk version used to compile a .class file [duplicate]
...
You're looking for this on the command line (for a class called MyClass):
On Unix/Linux:
javap -verbose MyClass | grep "major"
On Windows:
javap -verbose MyClass | findstr "major"
You want the major version from the results. Here are some example va...
MLKitFaceDetector 拓展：离线人脸检测（表情 / 睁闭眼 / 头部姿态） · Ap...
...{
标签1.Text = join("检测到 ", faceCount, " 张人脸")
标签_原始结果.Text = resultJson
} else {
标签1.Text = "没检测到人脸"
}
}
when FaceDetector1.DetectionFailed(operation, errorMessage) {
标签1.Text = errorMessage
}
二、判断有没有在笑（...
场景样式（HarmonyStyleKit）使用指导 · App Inventor 2 中文网
...，将同名事件的处理合并到一个事件积木中。
when 按钮_主题.Click() {
标签1.Text = HarmonyStyleKit1.BuildSceneTheme("compact", "service-center", "#2196F3")
}
案例二：应用主题到当前表单
when 按钮_应用.Click() {
HarmonyStyleKit1.App...
What does numpy.random.seed(0) do?
...
If you set the np.random.seed(a_fixed_number) every time you call the numpy's other random function, the result will be the same:
>>> import numpy as np
>>> np.random.seed(0)
>>> perm = np.random.permutation(10)
>>> p...
How do I represent a hextile/hex grid in memory?
... Board:
# Layout is just a double list of Tiles, some will be None
def __init__(self, layout=None):
self.numRows = len(layout)
self.numCols = len(layout[0])
self.hexagons = [[None for x in xrange(self.numCols)] for x in xrange(self.numRows)]
self.edges = [[None for x in xrange(s...
OceanBase使用libeasy原理源码分析：客户端 - 数据库(内核) - 清泛网 - 专...
...端》，作为客户端使用时，会涉及到一些数据结构，easy_session_t, easy_client_t, easy_hash_t, easy_hash_list_t等。
easy_session_t用来封装一个要发出去的请求，easy_client_t用来封装一个TCP连接的发起端，easy_hash_t是一个哈希表，easy_hash_list_t是...
Why are function pointers and data pointers incompatible in C/C++?
...ill couldn't convert between the two pointers (short of using non-standard __near and __far modifiers).
Additionally there's no guarantee that even if the pointers are the same size, that they point to the same thing - in the DOS Small memory model, both code and data used near pointers, but they p...