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提交作业 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...17 21:27 编辑
第二课作业提交：相比于课上，增加了文本输入框，游玩时能够自行输入想要打出的文本。输入后，点击上方按钮便可以令打字机打出，并且附带音效。文本打完后，再点击下方按钮，就可以重新输入，重复游玩。...
蓝牙配对pin码设置 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...情况下，当您在第一次将两个蓝牙设备配对时，会要求您输入一个四位数或六位数的 PIN 码。这个 PIN 码必须在两个设备上输入相同的数字才能进行配对成功。以下是一些有关蓝牙配对 PIN 码设置的注意事项：默认 PIN 码：许多蓝...
Mysql substr和Oracle substr区别 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
Mysql substr和Oracle substr区别Oracle substr(字符串，开始索引、从0起，长度)Mysql substr或substring(字符串，开始索引、从1起，长度)Oracle substr(字符串，开始索引、从0起，长度)
Mysql substr或substring(字符串，开始索引、从1起，长度)Mysql Orac...
sizeof、strlen简单总结 - C/C++ - 清泛IT论坛，有思想、有深度
sizeof strlen const char* p 4 字符串长度 std::string 4 字符串长度 "......" 字符串长度+1 ('\0') 字符串长度
Ajax request returns 200 OK, but an error event is fired instead of success
... website, and I am calling the endpoint from a webpage. It always returns 200 OK , but jQuery executes the error event.
I tried a lot of things, but I could not figure out the problem. I am adding my code below:
...
Can we open pdf file using UIWebView on iOS?
...
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(10, 10, 200, 200)];
NSURL *targetURL = [NSURL URLWithString:@"https://www.example.com/document.pdf"];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
[webView loadRequest:request];
[self.view addSubview:webView];
...
Why does overflow:hidden not work in a ?
...le-layout: fixed;
border-collapse: collapse;
width: 100%;
max-width: 200px;
}
td {
background: #F00;
padding: 20px;
overflow: hidden;
white-space: nowrap;
width: 100px;
border: solid 1px #000;
}
<table>
<tbody>
<tr>
<td>
This_is_a_terrib...
How to calculate a Mod b in Casio fx-991ES calculator
...numbers that are out of calculator's precision. If you want to compute say 200^5 mod 391 then some tricks from algebra are needed. For example, using rule
(A * B) mod C = ((A mod C) * B) mod C we can write:
200^5 mod 391 = (200^3 * 200^2) mod 391 = ((200^3 mod 391) * 200^2) mod 391 = 98
...
Proper REST response for empty table?
... be very confused as an author of a client for your application if I got a 200 one day and a 404 the next day just because someone happened to remove a couple of users. What am I supposed to do? Is my URL wrong? Did someone change the API and neglect to leave a redirection.
Why not 204 (No Content)...
21岁女子发帖用后半生借200万尽孝 - life组图 - 清泛网 - 专注C/C++及内核技术
21岁女子发帖用后半生借200万尽孝借钱 尽孝近日，川师大21岁女生樊师贝发帖称，希望有人借她200万，为父母在城里买房15年还清，至于利息“可以用后半生来陪伴你”。她说，六旬父亲要负担家用，哥哥啃老，而她目前一分钱...