大约有 30,000 项符合查询结果（耗时：0.0284秒） [XML]
Possible Loss of Fraction
...ns that myObject.Value being 12 will result in returnValue becoming 1, not 1.2.
You need to cast the value(s) first:
double returnValue = (double)(myObject.Value) / 10.0;
This would result in the correct value 1.2, at least as correct as doubles will allow given their limitations but that's disc...
Force browser to clear cache
...r if you're not keeping track of versions, just use the file last-modified time, which is even easier to do). Not sure if that's what the previous commenter meant!
– Doin
Mar 15 '14 at 19:02
...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...
SQLite 拓展
1.3版本更新（2025/09/24）
1.2版本更新（2025/09/15）
中文网测试案例
打开数据库
数据库信息
创建数据表
数据表信息
插入数据
更新数据
删除数据
读取...
Performance of foreach, array_map with lambda and array_map with static function
...XDebug and a more recent PHP version.
function lap($func) {
$t0 = microtime(1);
$numbers = range(0, 1000000);
$ret = $func($numbers);
$t1 = microtime(1);
return array($t1 - $t0, $ret);
}
function useForeach($numbers) {
$result = array();
foreach ($numbers as $number) {
$resul...
Why use bzero over memset?
...nix Network Programming, Volume 1, 3rd Edition by Stevens, et al., Section 1.2 (emphasis added):
bzero is not an ANSI C function. It is derived from early Berkely
networking code. Nevertheless, we use it throughout the text, instead
of the ANSI C memset function, because bzero is easier to r...
How do you round a floating point number in Perl?
...he result in a variable, use sprintf... hope this saves you some debugging-time :-P
– Boris Däppen
Mar 16 '16 at 20:29
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How do I format a Microsoft JSON date?
...onstructor:
var date = new Date(jsonDate); //no ugly parsing needed; full timezone support
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Obtain Bundle Identifier programmatically
...ring *bundleIdentifier = [[NSBundle mainBundle] bundleIdentifier];
Swift 1.2
let bundleIdentifier = NSBundle.mainBundle().bundleIdentifier
Swift 3.0
let bundleIdentifier = Bundle.main.bundleIdentifier
Xamarin.iOS
var bundleIdentifier = NSBundle.MainBundle.BundleIdentifier
...
MySQL: #126 - Incorrect key file for table
...
Every Time this has happened, it's been a full disk in my experience.
EDIT
It is also worth noting that this can be caused by a full ramdisk when doing things like altering a large table if you have a ramdisk configured. You can ...
CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...据缓存中。
Squid代理服务器工作在TCP/IP的应用层。
1.2 Squid 分类
按照代理类型的不同，可以将Squid 代理分为正向代理和反向代理，正向代理中，根据实现方式的不同，又可以分为普通代理和透明代理。
普通代理：需要客...