blocks|key|514978|text|看看TextInput类的restrict属性。将其设置为"0-9“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|514979|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

look at the restrict property on the TextInput class. Set it to "0-9"

blocks|key|497369|text|+++<s:TextInput+id="textInput"
++++++++++++++++restrict="0-9"
++++++++++++++++widthInChars="20"
++++++++++++++++maxChars="20"+/>
+++<mx:TextInput+id="textInput"
++++++++++++++++restrict="0-9"
++++++++++++++++widthInChars="20"
++++++++++++++++maxChars="20"+/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|497370|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> &lt;s:TextInput id="textInput"
 restrict="0-9"
 widthInChars="20"
 maxChars="20" /&gt;
 &lt;mx:TextInput id="textInput"
 restrict="0-9"
 widthInChars="20"
 maxChars="20" /&gt;
</code></pre>

blocks|key|1904534|text|看看mx.validators.NumberValidator：http://livedocs.adobe.com/flex/3/langref/mx/validators/NumberValidator.html|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1904535|entityMap|0|LINK|mutability|MUTABLE|url|http://livedocs.adobe.com/flex/3/langref/mx/validators/NumberValidator.html^0|W|23|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Look at mx.validators.NumberValidator: <a href="http://livedocs.adobe.com/flex/3/langref/mx/validators/NumberValidator.html" rel="nofollow noreferrer">http://livedocs.adobe.com/flex/3/langref/mx/validators/NumberValidator.html</a>

blocks|key|515014|text|我不知道你到底想做什么。如果您只想对这两项求和，请使用以下命令|type|unstyled|depth|inlineStyleRanges|entityRanges|data|515015|{parseInt(txt1.text)+%2B+parseInt(txt2.text)}|code-block|syntax|javascript|515016|您的示例只是将这两个字符串连接起来。这个示例尝试将文本转换为数字，然后将这两个值相加。|515017|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I'm not sure what exactly you want to do. If you just want to sum those two, use following

<pre><code>{parseInt(txt1.text) + parseInt(txt2.text)}
</code></pre>

your example just concatenate those two strings. This one example try to convert text into number and then sum those two values.

blocks|key|515029|text|<?xml+version="1.0"?>

<mx:Application+xmlns:mx="http://www.adobe.com/2006/mxml"+viewSourceURL="srcview/index.html">

++++<mx:Panel+title="Dodawanie+dwóch+liczb+:)"+height="279"+width="238"+
++++++++paddingTop="10"+paddingLeft="10">

++++++++<mx:TextInput+id="src"
++++++++++restrict="0-9"
++++++++++++++++maxChars="20"+/>
++++++++<mx:TextInput+id="dest"
++++++++++restrict="0-9"
++++++++++++++++maxChars="20"/>

++++++++<mx:Button+label="dodaj"+click=+"dodaj();"+id="but"/>
++++++++<mx:Label+text="Suma"+width="59"/>
++++++++<mx:Label+text="0"+width="160"+id="wynik"/>

++++</mx:Panel>
++++<mx:Script>
+++++<![CDATA[
++++++import+mx.formatters.NumberBase;
++++++public+function+dodaj():Number
++++++{
+++++++var+liczba:Number+=+Number(src.text)+%2B+Number(dest.text);
+++++++wynik.text+=+liczba.toString();
+++++++return+0;
++++++}

+++++]]>
++++</mx:Script>
</mx:Application>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|515030|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?xml version="1.0"?&gt;
&lt;!-- Simple example to demonstrate the TextInput control. --&gt;
&lt;mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" viewSourceURL="srcview/index.html"&gt;

 &lt;mx:Panel title="Dodawanie dwóch liczb :)" height="279" width="238" 
 paddingTop="10" paddingLeft="10"&gt;

 &lt;mx:TextInput id="src"
 restrict="0-9"
 maxChars="20" /&gt;
 &lt;mx:TextInput id="dest"
 restrict="0-9"
 maxChars="20"/&gt;

 &lt;mx:Button label="dodaj" click= "dodaj();" id="but"/&gt;
 &lt;mx:Label text="Suma" width="59"/&gt;
 &lt;mx:Label text="0" width="160" id="wynik"/&gt;

 &lt;/mx:Panel&gt;
 &lt;mx:Script&gt;
 &lt;![CDATA[
 import mx.formatters.NumberBase;
 public function dodaj():Number
 {
 var liczba:Number = Number(src.text) + Number(dest.text);
 wynik.text = liczba.toString();
 return 0;
 }

 ]]&gt;
 &lt;/mx:Script&gt;
&lt;/mx:Application&gt;
</code></pre>

blocks|key|515045|text|有一个名为NumericStepper的控件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|515046|请参阅：http://livedocs.adobe.com/flex/3/html/help.html?content=controls_11.html|offset|length|515047|如果您不想在那里使用向上和向下箭头，可以将它们的皮肤类设置为null。|515048|干杯，斯莱|515049|entityMap|0|LINK|mutability|MUTABLE|url|http://livedocs.adobe.com/flex/3/html/help.html?content=controls_11.html^0|0|4|20|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

There's a control called NumericStepper.

See: <a href="http://livedocs.adobe.com/flex/3/html/help.html?content=controls_11.html" rel="nofollow">http://livedocs.adobe.com/flex/3/html/help.html?content=controls_11.html</a>

If you don't want the up and down arrows there, you can set their skin class to null.

Cheers,
Sly

blocks|key|515395|text|您需要更改该属性，以便应用程序只向应用程序请求数字键盘。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|515396|尝试'SoftKeyboard"number“；‘|515397|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

You need to change the property so that the application only request the number keyboard from the application. 

try 'SoftKeyboard"number" ; '

blocks|key|497540|text|我使用类似这样的东西|type|unstyled|depth|inlineStyleRanges|entityRanges|data|497541|<s:TextInput+id="textInput"
++++restrict="0-9.\\-"
++++change="onChangeNumberTextInput(event,+6)"/>

private+function+onChangeNumberTextInput(event:TextOperationEvent,+precision:uint+=+2):void
++++{
++++++++var+strNumber:String+=+"";
++++++++if+(event.currentTarget+is+mx.controls.TextInput)
++++++++++++strNumber+=+(event.currentTarget+as+mx.controls.TextInput).text;
++++++++else+if+(event.currentTarget+is+spark.components.TextInput)
++++++++++++strNumber+=+(event.currentTarget+as+spark.components.TextInput).text;
++++++++else
++++++++++++return;

++++++++var+ind:int+=+strNumber.indexOf(".");
++++++++if+(ind+>+-1)
++++++++{
++++++++++++var+decimal:String+=+strNumber.substring(ind+%2B+1);
++++++++++++if+(decimal.indexOf(".")+>+-1)
++++++++++++++++strNumber+=+strNumber.substring(0,+ind+%2B+1+%2B+decimal.indexOf("."));
++++++++++++if+(decimal.length+>+precision)
++++++++++++++++strNumber+=+strNumber.substring(0,+ind+%2B+1+%2B+precision);
++++++++}

++++++++if+(event.currentTarget+is+mx.controls.TextInput)
++++++++++++(event.currentTarget+as+mx.controls.TextInput).text+=+strNumber;
++++++++else+if+(event.currentTarget+is+spark.components.TextInput)
++++++++++++(event.currentTarget+as+spark.components.TextInput).text+=+strNumber;
++++}|code-block|syntax|javascript|497542|change+listener函数从小数点删除超出精度字符数的所有内容，或删除任何第二次出现的"."：|497543|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I use somthing like

<pre><code>&lt;s:TextInput id="textInput"
 restrict="0-9.\\-"
 change="onChangeNumberTextInput(event, 6)"/&gt;

private function onChangeNumberTextInput(event:TextOperationEvent, precision:uint = 2):void
 {
 var strNumber:String = "";
 if (event.currentTarget is mx.controls.TextInput)
 strNumber = (event.currentTarget as mx.controls.TextInput).text;
 else if (event.currentTarget is spark.components.TextInput)
 strNumber = (event.currentTarget as spark.components.TextInput).text;
 else
 return;

 var ind:int = strNumber.indexOf(".");
 if (ind &gt; -1)
 {
 var decimal:String = strNumber.substring(ind + 1);
 if (decimal.indexOf(".") &gt; -1)
 strNumber = strNumber.substring(0, ind + 1 + decimal.indexOf("."));
 if (decimal.length &gt; precision)
 strNumber = strNumber.substring(0, ind + 1 + precision);
 }

 if (event.currentTarget is mx.controls.TextInput)
 (event.currentTarget as mx.controls.TextInput).text = strNumber;
 else if (event.currentTarget is spark.components.TextInput)
 (event.currentTarget as spark.components.TextInput).text = strNumber;
 }
</code></pre>

The change listener function removes everything beyond the number of precision characters from the decimal point, or any second occurrence of ".":

Need a code that only accepts numbers. Upon inputting, the code must check if it is number, if not, it must remove the entered key or not enter it at all

Flex: Text Input that accepts number only

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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需要一个只接受数字的代码。在输入时，必须检查代码是否为数字，如果不是，则必须删除输入的键或根本不输入

问Flex:只接受数字的文本输入
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问Flex:只接受数字的文本输入EN