今天,我在现场验证中遇到了一个问题。当我在文本框中输入电子邮件时,作为xx@yy.com ie。(空间)xx@yy.com.它以“无效电子邮件”的形式抛出一个错误。我想整理一下电子邮件,然后在validate中验证。
html
<input type="text" placeholder="Email" maxlength="255" class="element text medium" name="email" id="email">
js
var f11 = new LiveVa
我遇到了这些警告,我需要消除它们。
Warning: Each child in a list should have a unique "key" prop.
Check the render method of `Summary`.
in tr (at Summary.js:46)
in Summary (at Main.js:323)
in StepForm (at App.js:8)
in div (at App.js:7)
in div (at App.js:6)
in App (at src/index.js:9)
我的应用程序中有一个非常奇怪的异常。127.0.0.1是未知主机。我不知道这是怎么发生的。以下是详细信息:
ShardedAmqpSpout [WARN] Failed to reconnect to AMQP broker
java.net.UnknownHostException: 127.0.0.1
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:3
我试着在JQUERY自动完成中显示MYSQL结果,结果是在结果value.And前显示空格,然后我试着用firebug show检查一下:
1 //show space
2 046A
3
这是我的php脚本:
$sql="SELECT lotno FROM dataserial
WHERE model='".$Mod."' AND startserial <= '".$Ser."'
AND endserial >= '".$Ser."'&
这是我的C程序(在Linux中)的相关部分:
while (input != ' '){
write(serial_port, msg, sizeof(msg));
//1. here I would like to wait at least 100 us with the Tx line high
//2. followed by at least 8us with the Tx line low
//3. and then repeat the message
input = mygetch();
}
如您所见,每次通过串口发送msg后,我希望将Tx行设置为10
我正在尝试运行下面的代码,它工作正常,直到我尝试添加第二个搜索值,然后使用逗号添加一个新值,该值被添加到值数组中。在SQL术语中,我基本上希望在每次循环迭代之后添加"AND“关键字。这有没有可能呢?
var query = from s in db.Items
join c in db.Categories on s.Category equals c.ID into cats from c in cats.DefaultIfEmpty()
join ma in db.Makes on s.Make eq