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怎么獲取當(dāng)前的value值，用console.log()來(lái)每次輸出value的值

JavaScript

19990000 2017-10-05 17:03:20

<!DOCTYPE?html> <html?lang="en"> <head> ????<meta?charset="UTF-8"> ????<title>Title</title> </head> <body> <input?type="text"?id="aaa"> </body> </html>

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2 回答

微積分2016

TA貢獻(xiàn)53條經(jīng)驗(yàn) 獲得超69個(gè)贊

<!DOCTYPE?html>
<html>
<head>
<meta?charset="UTF-8">
<title>Document</title>
</head>
<body>
<input?type="text"?id="t1"?/>

<script?type="text/javascript">
var?init=function?()?{
????var?t1=document.getElementById("t1");
????
????t1.oninput=function?()?{
????????console.log(t1.value);
????};
????//?IE
????t1.onpropertychange=function?()?{
????????console.log(t1.value);
????};
};
window.onload=init;
</script>
</body>
</html>

2 反對(duì) 回復(fù) 2017-10-05

千秋此意

TA貢獻(xiàn)158條經(jīng)驗(yàn) 獲得超188個(gè)贊

<!DOCTYPE?html>
<html>

<head>
????<meta?charset="UTF-8">
????<title>Title</title>
</head>

<body>
????<input?type="text"?id="aaa">
????<script>
????var?input?=?document.getElementById('aaa');
????var?timer?=?null;

????input.onkeyup?=?function()?{
????????clearTimeout(timer);
????????timer?=?setTimeout(function()?{
????????????console.log(input.value);
????????},?500);
????}
????</script>
</body>

</html>

2 反對(duì) 回復(fù) 2017-10-05