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急求技术支持，不知如何将WxBit版APP Inventor的MQTT客户端转化为App Inven...
手机APP代码块描述：创建主题topic全局变量。
手机APP代码块描述：设置了当MQTT连接建立之后订阅相关主题和连接断开后给出提示。
手机APP代码块描述：设置了当手机MQTT客户端收到消息后将消息内容显示在APP的界面上。
...
Easiest way to pass an AngularJS scope variable from directive to controller?
...urDirective', function () {
return {
restrict: 'A',
// NB: no isolated scope!!
link: function (scope, element, attrs) {
// observe changes in attribute - could also be scope.$watch
attrs.$observe('yourDirective', function (value) {
...
How to auto-remove trailing whitespace in Eclipse?
...d configure it to remove trailing whitespace (among other useful things).
NB: This option has been removed in Eclipse Kepler (4.3) and following releases.
NB #2: The option seems to be back in Eclipse Luna - Luna Service Release 1a (4.4.1)
...
Generate unique random numbers between 1 and 100
...ODE COPIED FROM LINK.
EDIT:
Improved code:
function fisherYates(myArray,nb_picks)
{
for (i = myArray.length-1; i > 1 ; i--)
{
var r = Math.floor(Math.random()*i);
var t = myArray[i];
myArray[i] = myArray[r];
myArray[r] = t;
}
return myArray.sli...
How to test equality of Swift enums with associated values
... }
case let .Number(na):
switch(b) {
case let .Number(nb): return na == nb
default: return false
}
}
}
[1] See "Equivalence Operators" at https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/AdvancedOperator...
CodeIgniter removing index.php from url
... [PT,L]
if you have url in this order site.com/index.php/class/method/id
NB:remove index.php in config.php should be config[index_page] = ""
NB: notice the difference at the last line instead of $0 use $1
share
|...
【精心整理】【实用】visual C++中最常用的类与API函数 - C/C++ - 清泛网 -...
...口的可见性
BOOL ShowWindow(int nCmdShow);
参数：nCmdShow 指明如何显示该窗口，取值为下列之一：
SW_HIDE 隐藏窗口并将活动性传递给另一窗口；
SW_MINIMIZE 最小化窗口并激活系统窗口列表中的顶层窗口；
SW_RESTORE 激活并显示窗口，若...
Build fat static library (device + simulator) using Xcode and SDK 4+
...[ part 1 ]##################
# First, work out the BASESDK version number (NB: Apple ought to report this, but they hide it)
# (incidental: searching for substrings in sh is a nightmare! Sob)
SDK_VERSION=$(echo ${SDK_NAME} | grep -o '\d\{1,2\}\.\d\{1,2\}$')
# Next, work out if we're in SIM or D...
Make sure only a single instance of a program is running
... try:
fcntl.lockf(lock_file_pointer, fcntl.LOCK_EX | fcntl.LOCK_NB)
already_running = False
except IOError:
already_running = True
return already_running
A lot like S.Lott's suggestion, but with the code.
...
Ruby on Rails - Import Data from a CSV file
...;adresse;complement_adresse;cp_ville;pays;region;departement;activite;date;nb_salaries;nom;prenom;civilite;adr_mail;libele_acti;categorie;tel' for Transaction
– nico_lrx
Jan 15 '17 at 21:50
...