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Socket客户端使用指导 · App Inventor 2 中文网
...务器必须接受原始 TCP，不能填 WebSocket 网址。
when 按钮_连接.Click() {
Socket客户端1.Connect()
}
when 按钮_断开.Click() {
Socket客户端1.Disconnect()
}
when Socket客户端1.Disconnected() {
标签1.Text = "连接已断开"
}
TCP 接收块不保证恰好是一条...
Multiple ModelAdmins/views for same model in Django admin
...l may be registered only once.
class PostAdmin(admin.ModelAdmin):
list_display = ('title', 'pubdate','user')
class MyPost(Post):
class Meta:
proxy = True
class MyPostAdmin(PostAdmin):
def get_queryset(self, request):
return self.model.objects.filter(user = request.user...
Having issue with multiple controllers of the same name in my project
... routes.IgnoreRoute("{resource}.axd/{*pathInfo}")
routes.MapRoute( _
name:="Default", _
url:="{controller}/{action}/{id}", _
defaults:=New With {.controller = "Home", .action = "Index", .id = UrlParameter.Optional} _
, namespaces:={"MvcAreas"}) ...
Spring Data JPA find by embedded object property
...Long twoId); and results in a query of the form: select ...... from one one_ left outer join two two_ on one_.two_id = two_.id where one_id = ? and two_.id = ?
– TroJaN
May 4 at 17:17
...
Convert SVG image to PNG with PHP
...ck:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color each state as needed, something like*/
$idColorArray = array(
"AL" => "339966"
,"AK" => "0099FF"
...
,"WI" => "FF4B00"
,"WY" => "A3609B"
);
foreach($i...
How can I sanitize user input with PHP?
..., you must escape the string with MySQL's function for this purpose (mysqli_real_escape_string). (Or, in case of databases, using prepared statements are a better approach, when possible.)
Another example is HTML: If you embed strings within HTML markup, you must escape it with htmlspecialchars. Th...
App Inventor 2 SideBarV2 侧边栏拓展 · App Inventor 2 中文网
...用 Show 和 Hide 控制显示：
when Screen1.Initialize() {
SidebarV2_1.Create(
垂直布局_内容,
["首页", "消息", "设置"],
["home", "message", "settings"],
"sidebar_background.png")
}
when 按钮_菜单.Click() {
SidebarV2_1.Show()
}
when SidebarV2_1.AfterSelecting...
Capture characters from standard input without waiting for enter to be pressed
... use a library for that:
conio available with Windows compilers. Use the _getch() function to give you a character without waiting for the Enter key. I'm not a frequent Windows developer, but I've seen my classmates just include <conio.h> and use it. See conio.h at Wikipedia. It lists getch(...
Utils to read resource text file to String (Java) [closed]
...urce("foo.txt");
String text = Resources.toString(url, StandardCharsets.UTF_8);
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How to send a PUT/DELETE request in jQuery?
...
/* Extend jQuery with functions for PUT and DELETE requests. */
function _ajax_request(url, data, callback, type, method) {
if (jQuery.isFunction(data)) {
callback = data;
data = {};
}
return jQuery.ajax({
type: method,
url: url,
data: data,
...