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| <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<textarea name="" id="txt1" cols="30" rows="10"></textarea>
<input type="text" name="" id="txt2">
<input type="button" id="btn1" value="留言">
<script>
window.onload = function (){
var oTxt1 = document.getElementById("txt1");
var oTxt2 = document.getElementById("txt2");
var oBtn1 = document.getElementById("btn1");
oTxt2.onkeydown = function (ev){
var oEvent = ev || event;
if (oEvent.keyCode === 13 && oEvent.ctrlKey) {
oTxt1.value += oTxt2.value + '\n';
oTxt2.value = "";
}
}
}
</script>
</body>
</html>
|
附上另外两个属性： shiftKey, altKey