大约有 700 项符合查询结果(耗时:0.0152秒) [XML]

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What is the performance cost of having a virtual method in a C++ class?

...pec to; clock_gettime(CLOCK_MONOTONIC, &to); return to.tv_sec - from.tv_sec + 1E-9 * (to.tv_nsec - from.tv_nsec); } }; int main(int argc) { for (int j = 0; j < 3; ++j) { typedef std::vector<Base*> V; V v; for (int i = 0; i < 1000; ++i) v....
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关于我们 · App Inventor 2 中文网,少儿编程陪伴者

... AI伴侣:v2.69   MIT官方:v2.69 发布日志 首页 VIP会员中心 中文社区 ...
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请停下来重新想下 你究竟为何创业? - 资讯 - 清泛网 - 专注C/C++及内核技术

...Javascript框架长什么样子,我要怎么借此优化产品的注册入口。 我当初还十分拥护每周强制工作40个小时的规定,因为每周过后,我都觉得爽歪歪了。我不会经常觉得自己欠谁的,不像之前每周只工作2、30小时那样。人生这几十...
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Timer function to provide time in nano seconds using C++

...ec ts; clock_gettime(CLOCK_REALTIME, &ts); return (uint64_t)ts.tv_sec * 1000000LL + (uint64_t)ts.tv_nsec / 1000LL; } the timing and values produced: Absolute values: rdtsc = 4571567254267600 clock_gettime = 1278605535506855 Processing time: (10000000 runs) rdtsc ...
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新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...化需求得不到满足,Kibana配置难度大。 我们起初采用官方Kibana v3,用户提出的类似SQL中的多个group by,画百分比,求指定区间占比等常见需求无法满足。之后通过三斗大神(微博@argv)定制版的Kibana 3满足了一些用户需求。Kibana 4...
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App Inventor 2 LLMAI2Ext 自研拓展:接入DeepSeek、Kimi、通义千问...等国...

...署,这里选择阿里的DeepSeek服务进行测试验证: BaseURL 由官方的改为:https://dashscope.aliyuncs.com/compatible-mode/v1 APIKey 用阿里云的。 ModelName 指定:deepseek-v3 或 deepseek-r1 (注意:第三方的模型名称和官方的不太一样) 参考测试...
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Android Left to Right slide animation

...ew.OnClickListener; import android.widget.Button; import android.widget.TextView; public class FirstActivity extends RootActivity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); s...
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How to Create a circular progressbar in Android which rotates on it?

...lass CustomProgressBarActivity extends AppCompatActivity { private TextView txtProgress; private ProgressBar progressBar; private int pStatus = 0; private Handler handler = new Handler(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(...
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How to programmatically set maxLength in Android TextView?

I would like to programmatically set maxLength property of TextView as I don't want to hard code it in the layout. I can't see any set method related to maxLength . ...
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BLE(四)嗅探工具 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...CC2540芯片的开发板都能实现BLE流量嗅探的功能。不过,TI官方并没有将侦听BLE的源代码放出,仅提供了烧写到USB Dongle的固件 在这个基础上,如果想要实现更多的功能,比如监听指定范围内所有的低功耗蓝牙设备的流量,就有必...