HTML onchange(this.value) [英] HTML onchange (this.value)

问题描述

我们在代码中发现了这一点(我们还没有亲自编写它，而且我们是Programmng的新手)，任何人都可以解释this.value的含义以及如何更改它吗?

We found this in our code (we haven't written it by our selfs, and we are new to programmng), can anyone explain what this.value means and how you change it?

<select id="sel_target" onchange="paint(this.value);sendid(value); highlight(value);move_to(value)">

谢谢！

推荐答案

this.value代表所选值.

this.value represents the selected value.

示例:

function getComboA(sel) {
    var value = sel.value;  
}

<select id="comboA" onchange="getComboA(this)">
<option value="">Select combo</option>
<option value="Value1">Text1</option>
<option value="Value2">Text2</option>
<option value="Value3">Text3</option>
</select>

上面的示例为您提供了选定的值 OnChange 事件.

The above example gets you the selected value OnChange event.

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