onclick Event

DOM 事件 MouseEvent

Paglilinaw at Paggamit

Ang onclick event ay nangyayari kapag i-click ng user ang element.

实例

I-execute ang JavaScript kapag i-click ang button:

<button onclick="myFunction()">I-click ako</button>

亲自试一试

May higit pang TIY example sa ibaba ng pahina.

Gramata

Sa HTML:

<element onclick="myScript">

亲自试一试

Sa JavaScript:

object.onclick = function(){myScript};

亲自试一试

Sa JavaScript, gamit ang addEventListener() method:

object.addEventListener("click", myScript);

亲自试一试

Komento:Internet Explorer 8 o mas maaga ay hindi sumusuporta addEventListener() Method.

Detalye ng Teknolohiya

Bububong: Suporta
Makakansela: Suporta
Uri ng kaganapan: MouseEvent
Suportadong HTML tag: Lahat ng HTML element, maliban sa: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style> at <title>
DOM Versyon: Level 2 Events

Suporta ng Browser

Kaganapan Chrome IE Firefox Safari Opera
onclick Suporta Suporta Suporta Suporta Suporta

Higit pang mga halimbawa

实例

I-click ang <button> element upang ipakita ang kasalukuyang petsa, petsa at oras:

<button onclick="getElementById('demo').innerHTML = Date()">Anong oras na ito?</button>

亲自试一试

实例

单击 <p> 元素将其文本颜色更改为红色：

<p id="demo" onclick="myFunction()">Click me to change my text color.</p>
<script>
function myFunction() {
  document.getElementById("demo").style.color = "red";
}
</script>

亲自试一试

实例

关于如何通过单击来更改 <p> 元素颜色的另一个例子：

<p onclick="myFunction(this, 'red')">Click me to change my text color.</p>
<script>
function myFunction(elmnt,clr) {
  elmnt.style.color = clr;
}
</script>

亲自试一试

实例

单击按钮将一些文本从输入字段复制到另一个输入字段：

<button onclick="myFunction()">Copy Text</button>
<script>
function myFunction() {
  document.getElementById("field2").value = document.getElementById("field1").value;
}
</script>

亲自试一试

实例

把 "onclick" 事件分配给 window 对象： 
window.onclick = myFunction;
// 如果用户在窗口中单击，则将 <body> 的背景颜色设置为黄色
function myFunction() {
  document.getElementsByTagName("BODY")[0].style.backgroundColor = "yellow";
}

亲自试一试

实例

使用 onclick 创建下拉按钮：

// 获取按钮，当用户点击时，执行 myFunction
document.getElementById("myBtn").onclick = function() {myFunction()};
/* myFunction 在添加和删除 show 类之间切换，用于隐藏和显示下拉内容 */
function myFunction() {
  document.getElementById("myDropdown").classList.toggle("show");
}

亲自试一试

相关页面

JavaScript 教程：JavaScript 事件

HTML DOM 参考手册：ondblclick 事件

HTML DOM 参考手册：onmousedown 事件

HTML DOM 参考手册：onmouseup 事件

DOM 事件 MouseEvent