计算功能 [英] calculation function

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本文介绍了计算功能的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

亲爱的先生。我的朋友给我一个代码如何计算而不按任何按钮...但我不知道如何插入功能使其工作...非常非常新手计算使用javascript ..请有人帮助我..

展开 | 选择 | Wrap | < span class =codeLinkonclick =LineNumbers(this);>行号

解决方案

Hello Azura。如果不点击按钮,有很多方法可以做到这一点。请你把完整的代码寄给我你正在做的工作。如果您的表单包含三个文本框表示,1表示输入第一个值,2表示输入第二个值,3表示总计。在第二个文本框中,您编写事件onblur =" calculate()"。而你的代码在计算函数。这符合你的要求。如果有任何疑问回复它我会帮助你。


[HTML]< html>

< head>

< script type =" text / javascript">

函数calculate()

{

var total =(parseInt(document) .getElementById(" cam")。value)+ parseInt(document.getElementById(" final_exam")。val ue))/ 2;

document.getElementById(" total")。value =总计;

}

< / script>

< / head>

< body>

输入< input type =" text" id =" cam">< br />

输入b< input type =" text" ID = QUOT; final_exam" onblur =" calculate()">< br />

Total =< input type =" text" id =" total">< br />

< / body>

< / html> [/ HTML]


在函数中我使用parseInt()来获取数据。在javascript中,无论从输入项获得的数据都将默认为String。为了转换我曾经使用它


问候

Ramanan Kalirajan


谢谢......它是'工作,但我把它改成onclick在最后的分数...再次感谢先生...


亲爱的先生...它只在我的数据工作..我可以得到那些工作在很多数据中......比如重复区域??


dear sir..my friend give me one code how to calculate without pressing any button... but i didn''t know how to insert function to make it work... very very newbie in calculation using javascript..please someonehelp me please..

Expand|Select|Wrap|Line Numbers

解决方案

Hello Azura. There are many ways u can do that without clicking a button. can u please send me the full code what u are working at. If your form contains three text box means, 1 for entering the first value, 2 for entering the second value and the 3 for total. in the 2nd text box you write the event onblur="calculate()". And your code in calculate function. That will match ur requirement. if any doubts post back it I will help u out.

[HTML]<html>
<head>
<script type="text/javascript">
function calculate()
{
var total = (parseInt(document.getElementById("cam").value) + parseInt(document.getElementById("final_exam").val ue)) / 2;
document.getElementById("total").value = total;
}
</script>
</head>
<body>
Enter a <input type="text" id="cam"><br/>
Enter b <input type="text" id="final_exam" onblur="calculate()"><br/>
Total = <input type="text" id="total"><br/>
</body>
</html>[/HTML]

In the function I used parseInt() for getting the data. In javascript whatever the data got from input item will be defaultly consider as a String. Inorder to convert I had used it

Regards
Ramanan Kalirajan


thanks.... it''s work but i change it into onclick at the final score... thanks again sir...


dear sir... it work when i data only..how can i get those work in many data... like repeat region??


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