本文实例讲述了Thinkphp5.0 框架使用模型Model添加、更新、删除数据操作。分享给大家供大家参考，具体如下：
Thinkphp5.0 的使用模型Model添加数据
使用create()方法添加数据
$res = TestUser::create([
'name' => 'zhao liu',
'password' => md5(123456),
'email' => 'zhaoliu@qq.com'
]);
dump($res);
使用save()方法添加数据
$userModel = new TestUser;
$userModel->name = 'ya ya'
2021-10-25 15:55:31
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本文实例讲述了C#使用委托(delegate)实现在两个form之间传递数据的方法。分享给大家供大家参考。具体分析如下：
关于Delegate【代理、委托】是C#中一个非常重要的概念，向前可以推演到C++的指针，向后可以延续到匿名方法、lambda表达式。
现在我就从一个最简单最实用的一个小例子出发分析一下Delegate的使用。
现在有两个窗体Form1和Form2。
两个按钮Button1（Form）和Button2（Form2）。
Form1的代码：
private void button1_Click(object sender, EventArgs e)
{
Form2 frm
2021-10-08 09:12:43
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由fischertechnik构建的Arduino控制的三角洲机器人：快速，精确的拾取和放置机器人。
2021-09-29 17:05:19
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简单的锁屏软件，屏蔽win键，屏蔽Alt+Tab键，屏蔽Ctrl+Alt+Del键，也可以修改屏蔽你自定义的按键，
2021-08-18 14:21:32
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In Hacker's Delight, Second Edition, Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include * A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code * A new chapter on error correcting codes (ECC), including routines for the Hamming code * More coverage of integer division by constants, including methods using only shifts and adds * Computing remainders without computing a quotient * More coverage of population count and counting leading zeros * Array population count * New algorithms for compress and expand * An LRU algorithm * Floating-point to/from integer conversions * Approximate floating-point reciprocal square root routine * A gallery of graphs of discrete functions * Now with exercises and answers
2021-08-13 13:57:48
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