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C#泛型(List)中基类和子类 怎么转换？ - .NET(C#) - 清泛IT论坛，有思想、有深度
...Foo，Foo支持所有子类列表。
方法一：
Foo(childList.Select(p => p as BaseClass).ToList())
上述 Select 转换是双向的，基类转子类也没问题。
方法二：
List<BaseClass> baseList = new List<BaseClass>();
baseList.AddRange(childList);
Foo(baseLis...
gcc自带内存泄漏、内存越界检测工具 - asan - C/C++ - 清泛网 - 专注C/C++及内核技术
...试代码如下：
#include <iostream>
#include <string.h>
using namespace std;
int main() {
void* p = malloc(5);
memcpy(p, "123456", 6);
return 0;
}
运行结果如下：
报告非常详细，内存异常发生的行号都能看到，也可以识别出来野指针。强烈建...
【解决】Linux mysql如何重置root密码？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
【解决】Linux mysql如何重置root密码？linux_reset_root_password1 前言忘记你的MySQL root密码？ 别担心，它发生在我们所有人身上。在本教程中，我们将向您展示如何重置MySQL root密码，以防您忘记密码。 本教程适用于任何现代Linux发行...
【解决】php报错：Can not connect to MySQL server - 更多技术 - 清泛网 -...
【解决】php报错：Can not connect to MySQL server遇到这种情况，如果是mysql安装问题，可以通过命名测试一下：mysql -uroot -p如果用户名密码验证能够正常连接，但php报错的话，那大概率是因为你访问的库没有被创建，创建一下就OK了。...
使用自带的web浏览器播放视频的链接，播放哔哩哔哩里上传的视频，因为是...
...
[url=]上传图片[/url][url=]网络图片[/url]
&lt;iframe src=&quot;//player.bilibili.com/player.html?isOutside=true&amp;aid=933682256&amp;bvid=BV1CT4y1o7De&amp;cid=428988802&amp;p=1&quot; scrolling=&quot;no&quot; border=&quot;0&quot; frameborder=&quot;no&quot; framespacing=&quot;0&quot; allowf...
Android canvas draw rectangle
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Disable password authentication for SSH [closed]
I'm looking for a way to disable SSH clients from accessing the password prompt as noted here .
5 Answers
...
Get the Query Executed in Laravel 3/4
...ld recommend using the Chrome extension Clockwork with the Laravel package https://github.com/itsgoingd/clockwork. It's easy to install and use.
Clockwork is a Chrome extension for PHP development, extending
Developer Tools with a new panel providing all kinds of information
useful for debug...
Is it possible to perform a 'grep search' in all the branches of a Git project?
Is it possible to run git grep inside all the branches of a Git control sourced project? Or is there another command to run?
...
requestFeature() must be called before adding content
...s directly from Activity.
This is a known issue on google as mentioned in https://code.google.com/p/android/issues/detail?id=186440
The work around provided for this is to use supportRequestWindowFeature() method instead of using requestFeature().
Please upvote if it solves your problem.
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